Tard will continue its friendly pursuit of Seven & i, executives said, even as they vented their frustrations over the slow progress in acquisition talks with the Japanese owner of the 7-Eleven convenience-store chain.

Canada’s Alimentation Couche-Tard has reiterated its determination to acquire Seven & i Holdings, although the operator of Japan’s top convenience store chain has rejected its offer.

Alimentation Couche-Tard could bolster its $47 billion offer for Seven & I if the Japanese firm became more cooperative and shared its financial information in greater detail, the founder of the Canadian retailer said on Thursday.