9 For the purposes of sections 15 and 19 and subparagraph 20(1)(c)(i) of the Act, where purchasers of like goods who are at the trade level nearest and subsequent to that of the importer in Canada have been substituted for purchasers who are at the same or substantially the same trade level as that of the importer, the price of the like goods shall be adjusted by deducting therefrom
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(a) the amount of any costs, charges or expenses incurred by the vendor of the like goods in selling to purchasers who are at the trade level nearest and subsequent to that of the importer that result from activities that would not be performed if the like goods were sold to purchasers who are at the same or substantially the same trade level as that of the importer; or
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(b) in the absence of information relating to the costs, charges and expenses mentioned in paragraph (a), an amount not exceeding the discount that is generally granted on the sale of like goods by other vendors in the country of export to purchasers who are at the same or substantially the same trade level as the importer.
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