1The Coal Industry Nationalisation Act of 1946 (hereinafter ‘the CINA’) created the National Coal Board, which became the British Coal Corporation (hereinafter ‘British Coal’) under the Coal Industry Act of 1987. Under the CINA, British Coal owns practically all coal reserves in the United Kingdom and enjoys the exclusive right to work and extract coal.
2The private sector of the British coal industry consists of some 200 small and medium-sized companies, approximately 160 of which operate underground mines and 34 of which engage in opencast coal mining.
3The applicant, the National Association of Licensed Opencast Operators (hereinafter ‘NALOO’) is a trade association covering at present 16 private mining concerns established in the United Kingdom and operating mines, most of which are opencast.
4British Coal ensures the working of its opencast sites primarily by awarding their operation to licensees. In 1989/1990, 17.5 million tonnes of coal were thus extracted from opencast mines, on behalf of British Coal, by private undertakings, including some of the members of the applicant association.
5British Coal is also empowered under section 36(2) of the CINA to grant licences for the extraction of coal to operators in the private sector, including NALOO members. The largest private mining concerns operate more than one mine.
6There are two types of licence:- —
the royalty-paid licence (‘royalty licence’), which allows the licensee to sell the coal to third parties of his choice against payment to British Coal of a royalty which is fixed for all licensees at a uniform rate for each tonne of coal;
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the delivered licence, under which the licensee delivers to British Coal the coal extracted at a price per tonne negotiated and agreed with British Coal on a site-by-site basis.
7British Coal has, since December 1990, withdrawn the option of delivered licences other than for operators with whom it had been negotiating this arrangement prior to that date.
8The deposits operated by British Coal amount to approximately 2 million tonnes. The 1990 Coal Industry Act increased from 25000 tonnes to 250000 tonnes the maximum reserves which could be granted to licensed opencast operators.
9Of the total production of 95.2 million tonnes extracted in the United Kingdom in 1989/1990, British Coal produced 93 million, or more than 97%.
10In 1989/1990, licensed opencast operations extracted 1068000 tonnes of coal under royalty licences and 773000 tonnes under delivered licences, making a total of 1841000 tonnes. The total volume produced from licensed opencast mines increased from 1210000 tonnes in 1984/1985 to 2095000 tonnes in 1990/1991.
11On 1 April 1990, the Central Electricity Generating Board (hereinafter ‘the CEGB’), the State-owned electricity-generating undertaking in Great Britain, was privatised under the 1989 Electricity Act. The CEGB's assets were transferred, in England and Wales, to National Power and PowerGen, two limited-liability companies established under that Act. The CEGB's assets in Scotland were transferred to Scottish Power.
12National Power and PowerGen are the only purchasers of coal for electricity generation in England and Wales. Approximately 95% of their annual requirements, amounting to some 75 million tonnes, are met by British Coal, the remaining 5% being met by private producers (3%) and by imports, almost exclusively effected by British Coal. In the short and medium term, British Coal will remain the major supplier of fuel for thermal electricity-generating stations in England and Wales.
13Pursuant to an agreement concluded in May 1986 between British Coal and the CEGB, 72 million tonnes of coal were purchased in 1986/1987 at prices divided into three tranches, the weighted average of which was 172 pence per gigajoule (hereinafter ‘p/Gj’) at the pit head, which with associated transport costs amounted to an average delivered price of 187p/Gj.
14As a result of the above agreement, the CEGB proposed to reduce its purchases from independent producers by 50% and insisted that the price at which it would purchase their coal would have to be competitive with the third tranche price of 133p/Gj (120p/Gj plus 13p/Gj in respect of transport costs).
15NALOO thereupon requested the Office of Fair Trading to investigate under the 1980 Competition Act and subsequently brought judicial review proceedings when it refused to do so.
16In a letter of 13 May 1988 which it sent to British Coal, NALOO stated that:‘If the Corporation [British Coal] will reduce all opencast royalties by £2.50 per tonne as previously agreed, NALOO will
1.withdraw the current judicial review proceedings;
2.confirm that it has no intention to have them reinstated;
3.confirm that it does not have it in mind to commence any other proceedings in connection with any related licensing or trading issue;
4.confirm that in all of the present circumstances it will accept the reasonableness of the new royalty levels.’
17NALOO subsequently withdrew its judicial review proceedings and British Coal, in accordance with its undertakings, reduced its opencast royalties from £13.50 to £11 per tonne. Licence holders were notified on 16 June 1988 of this reduction, which was backdated to 27 December 1987.
18In 1989/1990, British Coal negotiated with National Power and PowerGen new coal supply contracts (hereinafter ‘the agreement’) for the period from 1 April 1990 to 31 March 1993, guaranteeing to British Coal annual sales of 70 million tonnes for the first two years and 65 million tonnes for the third year. The basis price was fixed at 170p/Gj gross and 177.9p/Gj net, subject to escalation (and de-escalation) formulas to take account of movements in the retail price index and the exchange rate between the pound sterling and the US dollar.
19When the agreement entered into force on 1 April 1990, National Power and PowerGen offered to licensed producers prices ranging from 122p/Gj to 139p/Gj at the mine.
20From 1 April 1990 until 13 December 1990, the royalty rate of £11 per tonne was reduced to £7 per tonne (£6 per tonne plus £1 per tonne for administrative costs).
21NALOO and the Federation of Small Mines of Great Britain, which represents nine regional associations of mining companies, lodged a complaint with the Commission on 29 March 1990 in which they alleged that the agreement and British Coal's extraction licence scheme were unlawful under Community competition rules.
22In the first place, the complainant associations claimed that the agreement was contrary to Article 63 of the ECSC Treaty in so far as the prices which the electricity generating companies were offering to British Coal, being higher than those offered to the licensed operators, constituted systematic discrimination by purchasers against the licensed producers.
23They considered that the agreement was also contrary to Article 65 of the ECSC Treaty, or alternatively Article 85 of the EEC Treaty, in so far as it had the effect of foreclosing a preponderant part of the British market for electricity-generating coal to suppliers other than British Coal and allowing British Coal to obtain from the electricity generating companies prices and conditions for the sale of coal which discriminated against licensed producers.
24They maintained that the electricity generating companies were in breach of Article 86 of the EEC Treaty by abusing the joint dominant position conferred on them by their status as the sole purchasers of electricity-generating coal.
25They also took the view that, in breach of Article 66(7) of the ECSC Treaty, British Coal was abusing its position as the dominant supplier of electricity-generating coal in order to secure favourable conditions for itself, particularly in terms of volume and price, to the detriment of its competitors, the small licensed mines.
26The complainant associations pointed out that British Coal's system of extraction licences, including in particular the royalty, was itself subject to the competition rules and constituted a breach thereof. They referred to a description of the licensing system, attached as Annex D to their complaint, detailing the difficulties encountered by the licensed sector.
27They alleged that the royalty imposed by British Coal on opencast coal mined under licence also breached the combined provisions of Article 4 and Article 60 of the ECSC Treaty because it was excessive, made the coal extracted under licence uncompetitive and thus constituted an unfair competitive practice involving discrimination between producers.
28In Annex G to their complaint of 29 March 1990, they concluded that the royalty rate of £11 was too high by £8.50 per tonne (34p/Gj) and that the price of 120p/Gj offered by the electricity generating companies was too low by £8.50 per tonne (34p/Gj). The complainants added that if the electricity generating companies brought their prices for licensed coal into line with those offered to British Coal, that is to say, 170p/Gj ex-mine, a royalty of £6 per tonne might be sustainable. Finally, they maintained that a selling price of less than 170p/Gj ex-mine would require a lower royalty.
29The complainants accordingly requested the Commission to adopt measures to rectify these breaches of Community law and also sought the adoption of interim measures. In this respect, they requested the Commission:- —
to prohibit British Coal and the electricity generating companies from operating the agreement so as to exclude the licensed producers from the market sector covered by the agreement, and to require the electricity generating companies to extend to the licensed producers the conditions defined for British Coal by the agreement;
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to require British Coal to reduce its royalty for opencast mines to a level comparable with international standards, that is to say, a maximum of £3 per tonne.
30The complaint was sent to British Coal, which submitted its observations in reply and forwarded a non-confidential version of those observations to the complainants' counsel on 1 May 1990.
31By letter of 25 May 1990, the complainants confirmed to the Commission the conditions under which they would be prepared, without prejudice to the maintenance of their principal demands, to withdraw their request for interim measures. In particular, they declared that they were ready to recommend an agreement based on a royalty of £6 per tonne for opencast coal, on condition that British Coal did not impose any administrative charge. The price of coal from the private sector should be fixed at 153p/Gj ex-mine, plus 15p for transport costs, making a total of 168p/Gj for coal delivered within a maximum radius of 30 miles. Otherwise, the price should be fixed at 153p/Gj ex-mine, transport costs being agreed on a case-by-case basis.
32In the complainants' opinion, the price of 153p/Gj was 10% below the average of prices granted to British Coal, which amounted to 170p/Gj. NALOO took the view that this price was entirely reasonable on an interim basis and would largely cover the administrative costs arising from the handling and checking of the smaller quantities sold by licensed operators.
33In their supplemental complaint of 27 June 1990, the complainants reiterated that the electricity generating companies had manifestly infringed Article 63 of the ECSC Treaty individually and collectively in view of the discrepancy between the prices for coal which they paid to British Coal and to the licensed producers, and that the agreement was contrary to Article 65 of the ECSC Treaty or, if that provision was not applicable, to Article 85 of the EEC Treaty.
34By decision of 28 June 1990, the Commission, without prejudice to the position that it might take on the substance, rejected the request for interim measures on the ground, inter alia, that, in the light of the amount of coal purchased from licensed operators, their position had not deteriorated vis-à-vis the situation obtaining prior to the agreement. It also took the view that the absolute prices paid to the private mines had not changed following the entry into force of those contracts, whereas the pithead price to British Coal had been reduced from 180p/Gj in 1989/90 to 172p/Gj in 1990/91, resulting in an improvement in the relative position of the private mines. Finally, the royalties paid by the private mines had not been changed by the entry into operation of the agreement.
35By letter of 28 August 1990, the Commission indicated to the United Kingdom's Permanent Representation to the European Communities that the differences between the price for coal paid to British Coal and that paid to other operators by the electricity generating companies might be justified on the ground that, unlike coal sold by British Coal, that from the private mines was in general untreated, delivered by road and sold in small quantities.
36However, it stated in that letter that those considerations were not sufficient to explain why the price difference, which apparently had previously been in the region of 12.5%, had reached current average levels of some 25% for National Power and some 40% for PowerGen. It was inclined to consider that a price of approximately 150p/Gj gross, with a suitable addition for transport, would be more appropriate.
37It took the view that the agreement substantially deprived licensed operators of access to the market and created a situation in which they obtained low prices. It also took the view that the royalty of £7 per tonne appeared too high in all the circumstances.
38By a document of 5 September 1990, the complainants submitted to the Commission, in response to the latter's request, a summary of their essential arguments. They complained that the electricity generating companies had systematically practised discrimination as purchasers within the meaning of Article 63 of the ECSC Treaty and had infringed both Articles 85 and 86 of the EEC Treaty.
39They maintained that British Coal, as a party to the agreement, had sought, along with the electricity generating companies, to make it more difficult for the private sector to supply coal to those generating companies, thereby creating a barrier to entry or expansion for the private sector that British Coal did not face.
40The complainants took the view that British Coal was in breach of Article 63 of the ECSC Treaty in so far as the rules which it had laid down for the purchase of coal from the private sector were specifically designed to increase the burden faced by that sector in supplying British Coal or, indeed, the electricity generating companies.
41The complainants also criticized British Coal for having adopted a policy of making it more difficult for the private sector to obtain licences to mine coal, as explained in Annex D to the complaint of 29 March 1990. In that regard, they stated that British Coal had repeatedly refused requests for a proper appeal procedure for refusals or delays in granting licences. In their view, British Coal has thus used its power to grant licences in a manner likely to increase the barriers to entry to the market, preserving its dominant position.
42They maintained that British Coal had also fixed royalties at an arbitrary level.
43Moreover, the factors and matters complained of with regard to Article 66(7) constituted infringements of Article 60 of the ECSC Treaty.
44Finally, the complainants added that, notwithstanding the above, Article 66(7) would encompass all of the infringements outlined above.
45On 24 October 1990, the United Kingdom authorities, on behalf of British Coal, National Power and PowerGen, presented to the complainants an offer consisting in the main of:- —
a new price equivalent to 157p/Gj net at the last point of supply, account being taken of transport costs of approximately 10p/Gj;
- —
a reduction in the royalties resulting in a new basic rate including administrative costs of £5.50 per tonne (£6 per tonne for amounts greater than 50000 tonnes) for coal from opencast pits;
- —
retroactive application of these conditions to 1 April 1990, the date on which the agreement entered into force.
46On 30 October 1990, the Commission informed the complainants that, subject to their comments, the conditions proposed seemed to it to be reasonable and unlikely to give it cause to seek more extensive measures on the part of the authorities and public undertakings in the United Kingdom.
47The Commission stressed that the royalty had to be considered in the light of the price to be received for coal mined under licence. If, as appeared to be the case, the royalty on opencast coal was not so large as to prevent efficient companies from making a profit at the prices available to them or to impose a significant competitive disadvantage on such companies, there should be no objection to a particular level of royalty. The Commission stated that, since the complaint had been lodged, the royalty had been reduced from £11 to £5.50 per tonne (£6 per tonne after the first 50000 tonnes), whereas the supply price, in England and Wales, had been increased by almost 23% or approximately £7 per tonne.
48The complainants replied on 7 November 1990 that the offer was unacceptable. The difference between the price paid to British Coal and that paid to them remained too great, in all the circumstances then obtaining, and the royalties proposed were still too high. They stated in particular that it was clear that their members were incurring a substantial competitive disadvantage in having to pay high royalties to their competitor in a monopoly situation, while selling their coal at a price significantly lower than the price of that competitor.
49The United Kingdom Minister for Energy informed the complainants, by letter of 22 November 1990, that the United Kingdom, British Coal, National Power and PowerGen had decided to apply immediately, and with effect from 1 April 1990, all of the conditions relating to price, purchase volumes and royalties proposed on 24 October 1990.
50By letter of 21 December 1990, the Commission informed the complainants that the requests which they had set out on the basis of Articles 60, 63 and 65 of the ECSC Treaty and of Articles 85 and 86 of the EEC Treaty in respect of England and Wales did not call for further action on its part. It took the view that there were no grounds for further investigation on its part under Article 66(7) of the ECSC Treaty with regard to royalties in England, Wales and Scotland.
51In particular, it noted, at paragraph 45 of its letter, that British Coal had, during the 1989/90 financial year, achieved an operating profit of £13.34 per tonne in respect of its opencast operations. Although there were differences, notably of scale, between British Coal's opencast operations and those of NALOO members, such a figure appeared to confirm that the royalty rates then being applied were not unreasonable.
52The Commission pointed out that it would be taking a definitive position only after it had examined any written comments which the complainants might wish to submit within two weeks of receipt of its letter.
53By letter of 11 January 1991, the complainants pointed out that they had expressed their clear desire to have other important issues dealt with, including the legality or otherwise of the pricing policy adopted by British Coal towards independent producers, which had the effect of excluding private producers from access to a substantial group of customers.
54In particular, they contested the conclusion which the Commission reached at paragraph 45 of its letter of 21 December 1990 on the ground that the positions of British Coal and the licensed operators were not comparable.
55By letter of 15 February 1991 to the Commission, they also stated their view that the Commission had not hitherto addressed the question of whether Article 65 of the ECSC Treaty was applicable to the licensing agreements. They requested the Commission to notify them of its views on the matter.
56By letter of 14 March 1991, the complainants also disputed the reasonableness of the royalty rate in the United Kingdom authorities' offer of 24 October 1990 and informed the Commission that they would be submitting to it accounts from British Coal's annual reports demonstrating that that rate was excessive.
57They stated in that letter that the Commission had hitherto confined itself to examining the legality of the extraction licence regime under Article 66(7) of the ECSC Treaty, even though they had pointed out that Article 65 was also applicable to contracts executed pursuant to that regime.
58Finally, they criticised the Commission for not having examined the consequences of the cumulative effect of the excessive royalty rate and the discrepancy between the prices applied by the electricity generating companies as regards the private producers, on the one hand, and as regards British Coal, on the other. By reason of that cumulative effect, they argued, private coal producers, whose sales to the electricity generating companies were no longer profitable, had been obliged since 1986 to sell coal mined under delivery licences to British Coal at ‘abusively low prices’, thereby allowing British Coal to resell that coal to the electricity generating companies at an excessive profit. The complainants accordingly called on the Commission to require British Coal to rectify any licences which were illegal as a result.
59On 15 May 1991, NALOO sent to the Commission a report dated 14 May 1991 prepared by Binder Hamlyn, an international accountancy firm (hereinafter ‘the Binder Hamlyn Report’), designed to provide the Commission with accounting evidence establishing that the royalty charged by British Coal over the five-year period to 31 March 1991 was excessive.
60By decision of 23 May 1991, notified to NALOO on 29 May 1991 (hereinafter ‘the contested decision’), the Commission rejected the complaints of 29 March 1990 and 27 June 1990. It explained that since British Coal, National Power and PowerGen had undertaken to modify their position, there was no longer any reason for the Commission to take proceedings against them in respect of conduct allegedly in restraint of competition under Articles 4, 60, 63, 65 and 66(7) of the ECSC Treaty and Articles 85 and 86 of the EEC Treaty.
61The contested decision dealt with the position in England and Wales in the light of the new situation arising from the entry into operation of the agreement on 1 April 1990. Examination of other issues, such as the situation prior to that date and British Coal's licensing powers, was expressly excluded from the contested decision, which dealt only with the two essential questions in the case, namely the agreement and the royalty.
62According to the contested decision, the agreement did not fall within the scope of Article 65 of the ECSC Treaty, since that provision applied only to agreements between at least two undertakings engaged in the production or distribution of coal and steel and National Power and PowerGen were not undertakings of that kind (paragraph 69).
63In its examination of the allegation of discrimination in the light of Articles 63 and 66(7) of the ECSC Treaty and Article 86 of the EEC Treaty, the Commission took the view that the terms of the agreement which British Coal had negotiated with National Power and PowerGen were not in themselves unfair, as they provided for prices lower than those which British Coal had previously enjoyed and offered only partial protection against inflation, with the result that real prices would fall over the duration of the contracts. Moreover, the agreement was for a relatively short period (three years) and provided for a tonnage reduced to 70 million tonnes in each of the first two years and 65 million tonnes in the third year (paragraph 53).
64The new differential of 20.9p/Gj, or 12%, between the price offered, with effect from 1 April 1990, by National Power and PowerGen, for coal from licensed mines (157p/Gj net at the mine) and for that provided by British Coal (177.9p/Gj) was not so large as to constitute discrimination justifying further intervention by the Commission. The complainants had themselves accepted that there was a case for a certain price differential between British Coal and the licensed producers. In addition, the Commission considered that the new price differential reflected the inability of the members of the complainant associations to supply the same volume as British Coal and the additional costs involved in dealing with a large number of small transactions. The Commission also noted that the small mines, unlike British Coal, were not exposed to variations in the £/US $ exchange rate and that it was impossible to quantify precisely all the elements to be taken into account when considering the difference in price, while the complainants also had been unable to put forward any convincing arguments for a lower figure (paragraphs 57 to 61).
65In the Commission's view, the contracts for the purchase of coal that the electricity generating companies had already concluded with the licensed mines guaranteed to the latter a production level in excess of their total production for 1989/90. If the commitments given for the future related to lower quantities, this was in particular because the licensed mines could not make long-term commitments. In any event, the sales guaranteed to the licensed mines for 1990/91 and 1991/92 were substantially above the level that would secure them, over those two years, equivalent treatment to that of British Coal in regard to guaranteed volumes of sales. The Commission believed that those contracts would result in the elimination of discrimination between British Coal and the licensed mines, subject to reopening of the case if this belief were to prove unfounded (paragraphs 63, 65 and 67).
66The contested decision went on to state that, since the licensed mines would henceforth obtain contracts giving them access to markets on terms comparable to those given to British Coal, the complainants also could not plead a breach of Article 85 of the EEC Treaty (paragraph 78).
67The Commission took the view that Article 60 of the ECSC Treaty, which clearly applied to the pricing practices of vendors, was not applicable to the royalty (paragraph 47).
68It also stated that:‘72.The level of royalty cannot be considered in isolation. The relationship between the price received for the coal and the costs, including the royalty, of producing that coal must be such as to enable efficient companies to make a profit and must not impose a significant competitive disadvantage on them....
73.In so far as the opencast mines are concerned, the royalty has been reduced from £11.00 a tonne before 1 April 1990 to £5.50 a tonne (£6.00 a tonne after the first 50000 tonnes) while the price the small mines receive has increased by over 23%.
74.The price now available for licensed coal, 157p/Gj, or approximately £40.00 a tonne, is over 20% or £8.00 a tonne higher than the price that was given to the small mines when the coal supply contracts [the agreement] came into operation. This, coupled with a reduction in royalty of at least £5.00 a tonne, will result in a large improvement in the gross profit margins of the licensed opencast mines. In 1989/90 the average sales revenue achieved by BCC [British Coal] on its opencast operations was £41.50 a tonne or about 160p/Gj, that is to say, approximately the same level as the price now available to the licensed mines. BCC made a profit of £12.68 a tonne on this production. Although there are differences, notably of scale, between the opencast operations of BCC and those of NALOO members, this would appear to confirm that the current royalty for opencast coal is not sufficiently high as to be unlawful. Thus, the royalty will not prevent efficient companies from making a profit or impose a significant competitive disadvantage.’
69The Commission concluded in the following terms:‘79.This decision deals with the situation in England and Wales arising from the entry into operation of the coal supply contracts on 1 April 1990 between BCC on one hand and NP [National Power] and PG [PowerGen] on the other.
80.Articles 60 and 65 ECSC are not applicable. Those parts of the complaint ... based on these articles are hereby rejected.
81.The Commission considers that the complaints made under Articles 63, 66(7) ECSC and 85 and 86 EEC were justified, in so far as they concerned the situation after 1 April 1990 when the coal supply contracts entered into operation.
82.If the terms of the UK authorities' offers dated 24 October 1990 are incorporated into contracts on the basis set out in this decision, the licensed mines will no longer be discriminated against in comparison with BCC. On this basis, those parts of the complaints under Article 63 ECSC, Article 66(7) ECSC in so far as it concerns purchase conditions, Article 85 EEC and Article 86 EEC are no longer valid and in so far as they relate to the present situation are rejected.
83.With regard to the part of the complaints under Article 66(7) ECSC concerning the royalty levied by BCC, the new royalty levels set out in the UK authorities' letter dated 24 October 1990 and subsequently implemented by BCC with effect from 1 April 1990 are not unreasonably high. That part of the complaints concerning royalty payments under Article 66(7) ECSC is therefore no longer valid and in so far as it relates to the present situation is rejected.’
70By letter sent to the Commission on 6 December 1991, NALOO pointed out that it had been unable to identify, in the published report and accounts of British Coal for the year which ended on 31 March 1990, the profit of £12.68 per tonne which British Coal had, according to paragraph 74 of the contested decision, achieved in respect of its opencast production. NALOO added that in its view the report and accounts for the next year, which ended on 31 March 1991, showed that British Coal's operating profit on opencast operations had fallen by £4.48 per tonne to £8.86 per tonne, as was demonstrated by the extract from British Coal's accounts set out in Annex A to the letter of 6 December 1991. By subtracting from the latter figure an interest cost of £2.07 per tonne (arrived at on the basis set out in the Binder Hamlyn Report of 14 May 1991) and £1.43 (the price differential between British Coal's receipts of £40.65 per tonne and the licensees' receipts of £39.22 per tonne), NALOO calculated a net profit of £5.36 per tonne. Even without taking into account the differential cost penalties suffered by licensees, the existence of which the Commission acknowledged at paragraph 74 of the contested decision, this, according to NALOO, illustrated that a royalty of £6.00 per tonne would result in a deficit of £0.64 per tonne. In the view of NALOO, that conclusion confirmed data which had already been submitted to the Commission in the Binder Hamlyn Report. It followed, according to NALOO, that British Coal itself could not afford to pay a royalty at that level. In the light of this further evidence demonstrating so clearly the unreasonableness of the royalty, NALOO suggested that the Commission might wish to reopen the issue and amend its decision.
71On 1 June 1991, Hopkins (a company) and others instituted proceedings before the High Court of Justice of England and Wales against National Power and PowerGen seeking compensation for the damage which they alleged that those two electricity generating companies had caused them from 1985 to 31 March 1990. In support of their action, they relied inter aim on breach of Articles 4 and 63 of the ECSC Treaty (hereinafter ‘the Treaty’) and argued that National Power and PowerGen, as the successors to the CEGB, had discriminated against them in relation to British Coal by purchasing coal from them under terms as to price and volume which were less favourable than those offered to British Coal.
72By orders of 13 January 1994 and 12 May 1994, the High Court stayed the proceedings and submitted to the Court of Justice for a preliminary ruling a number of questions asking, in particular, under which Treaty provisions the dispute fell to be determined.
73By judgment of 2 May 1996 in Case C-18/94 Hopkins and Others v National Power and PowerGen [1996] ECRI-228, the Court held, inter alia, that the provisions of the ECSC Treaty, and in particular Articles 4(b) and 63(1) thereof, constituted the legal framework for dealing with discrimination by purchasers against producers as regards price, volume and other terms and conditions for the purchase of coal.
74In the interim, NALOO lodged a fresh complaint with the Commission on 15 June 1994 seeking examination under Articles 4(d), 65 and 66(7) of the Treaty of the royalties levied by British Coal on licensed producers from 1 January 1973, the date on which the United Kingdom acceded to the European Communities, to 31 March 1990, a period expressly excluded by the contested decision.
75British Coal formally requested the Commission to dismiss this fresh complaint lodged by NALOO without examining its substance. That request was rejected by an implied decision deemed to result, under the third paragraph of Article 35 of the Treaty, from the Commission's silence at the end of two months following the formal notice. British Coal accordingly brought an action against that implied decision of refusal by application lodged at the Registry of the Court of First Instance on 10 November 1994 and registered as Case T-367/94.