Mexico’s government archaeological agency says the images of the Aztec calendar stone and the Pyramid of the Moon from the pre-Aztec ruins of Teotihuacan are the intellectual property of the Mexican nation. The agency will decide how much Starbucks should pay.

Starbucks Corp.’s Mexico unit says it is willing to pay for permission to sell coffee mugs featuring pre-Hispanic images, after the Mexican government notified it about potential violations of intellectual property rights.