definiens: shall mean gross receipts from sal es of a COLLABORATION PRODUCT ( on a product - by - product basis ) by SB or H GS or, except as provided below, their respective AFFILIATES, licensees, dis tributors trading on SB 's or HGS 's account or joint ventures or other associ ated companies, less deductions for ( i ) transportation, shipping and po stage charges, including transportation insurance and customs duties to the extent separately invoiced ; ( ii ) sales and excise taxes and duties p aid or allowed by a selling party and any other governmental charges i mposed upon the production, importation, use or sale of such produ ct ; ( iii ) normal and customary trade, quantity and cash discounts allow ed and rebates including but not limited to Medicaid and Medicaid - like reba tes ; and ( iv ) allowances or credits to customers on account of rejection or return of such product or on account of retroactive price reductions affe cting such product . Sales between or among a party to this Agreement and its respective AFFILIATES, licensees, distributors trading on SB 's or HGS 's a ccount, or joint ventures or other associated companies shall be included wi thin NET SALES only if such purchaser is an end - user of the COLLABORATION PRODUCT . Otherwise, NET SALES shall only include the subsequent, final sal es to THIRD PARTIES