exporting country (19), the minimum prices shall be calculated on the basis of the minimum f.o.b. prices specified in paragraph 2(b) of this Article, plus the real and justified costs of the services provided, if the terms of the sale include credit this shall be charged for at the prevailing commercial rates in the country concerned.Special conditions of sales 5. Participants undertake within the limit of their institutional possibilities to ensure that practices such as those referred to in Article 4 of this Protocol do not have the effect of directly or indirectly bringing the export prices of the products subject to the minimum price provisions below the agreed minimum prices.Field of application 6. For each participant, this Protocol is applicable to exports of the products specified in Article 1 of this Protocol manufactured or repacked inside its own customs territory.Transactions other than normal commercial transactions 7. The provisions of paragraphs 1 to 6 of this Article shall not be regarded as applying to donated exports to developing countries or to exports destined for relief purposes of food-related development purposes or welfare purposes in developing countries.Article 4Provision of Information1. In cases where prices in international trade of the products coverd by Article 1 of this Protocol are approaching the minimum prices mentioned in Article 3.2(b) of this Protocol, and without prejudice to the provisions of Article III of the Arrangement, participants shall notify to the Committee all the relevant elements for evaluating their own market-situation and, in particular, credit or loan practices, twinning with other products, barter or three-sided transactions, refunds or rebates, exclusivity contracts, packaging costs and details of the packaging, so that the Committee can make a verification.Article 5Obligations of Exporting Participants1. Exporting participants agree to use their best endeavours, in accordance with their institutional possibilities, to supply on a priority basis the normal commercial requirements of developing importing participants, especially those used for food-related development purposes and welfare purposes.Article 5Cooperation of Importing Participants1. Participants which import products covered by Article 1 of this Protocol undertake in particular:(a) to cooperate in implementing the minimum prices objective of this Protocol and to ensure, as far as possible, that the products covered by Article 1 of this Protocol are not imported at less than the appropriate customs valuation equivalent to the prescribed minimum prices;(b) without prejudice to the provisions of Article III of the Arrangement and Article 4 of this Protocol, to supply information concerning imports of products covered by Article 1 of this Protocol from non-participants;(c) to consider sympathetically proposals for appropriate remedial action if imports at prices inconsistent with the minimum prices threaten the operation of this Protocol.PART THREE Article 7Derogations1. Upon request by a participant, the Committee shall have the authority to grant derogations from the provisions of Article 3, paragraphs 1 to 4 of this Protocol in order to remedy difficulties which observance of minimum prices could cause certain participants. The Committee shall pronounce on such a request within three months from the date of the request.Article 8Emergency Action1. Any participant, which consides that its interests are seriously endangered by a country not bound by this Protocol, can request the Chairman of the Committee to convene an emergency meeting of the Committee within two working days to determine and decide whether measures would be required to meet the situation. If such a meeting cannot be arranged within the two working days and the commercial interests of the participant concerned are likely to be materially prejudiced, that participant may take unilateral action to safeguard its position, on the condition that any other participants likely to be affected are immediately notified. The Chairman of the Committee shall also be formally advised immediately of the full circumstances of the case and shall be requested to call a special meeting of the Committee at the earliest possible moment.ANNEX III PROTOCOL REGARDING CERTAIN CHEESES PART ONE Article 1Product Coverage1. This Protocol applies to cheeses falling under CCCN heading No 04.04, having a fat content in dry matter, by weight, equal to or more than 45 per cent and a dry matter content, by weight, equal to or more than 50 per cent.PART TWO Article 2Pilot Product1. For the purpose of this Protocol, a minimum export price shall be established for the pilot product of the following description:Designation: CheesePackaging:In packages normally used in the trade of a net content by weight of not less than 20 kg or 40 lbs., as appropriate.Terms of sale:F.o.b. from the exporting country or free-at-frontier exporting country.By derogation from this provision, reference points are designated for the countries listed in Annex III(a) (20). The Committee established in pursuance of Article VII:2(a) of the Arrangement (hereinafter referred to as the Committee) may amend the contents of that Annex.Prompt payment against documents.Article 3Minimum PriceLevel and observance of minimum price 1. Participants undertake to take the steps necessary