Diageo has announced that it has reached an agreement to acquire artisanal brand Mezcal Unión through the purchase of Casa UM for an undisclosed sum. The spirits giant has been working in partnership with Mezcal Unión since 2016, supporting the growth of the brand's distribution network in Mexico, the US and other export markets. As part of the agreement, Mezcal Unión's founders will continue to be...