Commission Regulation (EC) No 1264/2001 of 27 June 2001 amending Regulations (EC) No 1531/2000 relating to a standing invitation to tender to determine levies and/or refunds on exports of white sugar for the 2000/01 marketing year, (EEC) No 1729/78 laying down detailed rules of application in respect of the production refund for sugar used in the chemical industry and (EC) No 1729/97 on the adjustment, following a change in prices or the storage levy in the sugar sector, of certain export refunds fixed in advance