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The proposed remedies "are very significant and we are confident they fully address the European Commission's concerns," Bayer said in a statement.
The European Commission said that the deadline for it to conclude its antitrust investigation had been postponed to April 5 from March 12 previously.
Bayer maintained it was still aiming to wrap up the deal "in early 2018".
Both the EU Commission and Bayer declined to say what assets Bayer had offered to put on the block.
The German company struck a deal with BASF in October last year to sell seed and herbicide businesses for 5.9 billion euros ($7.36 billion) but has said it was prepared to do more to gain EU approval.