Moreover, the Purchaser and Michel JI undertake, for the same period, that any greasy wool to be purchased by them in Uruguay, Argentina, Australia and New-Zealand for the possible sale to customers based in PRC, either for the greasy wool without industrial transformation or for the greasy wool to be transformed in combed wool, shall be exclusively purchased from the companies LANAS TRINIDAD S.A. (for Uruguay) and CHARGEURS WOOL (ARGENTINA) S.A. (for Argentina), YANGTSE (AUSTRALIA) Pty Ltd (for Australia) and CHARGEURS WOOL (NZ) Limited (for New-Zealand).