Cannabis producer Green Thumb Industries has expressed an interest in merging with US-based brewer Boston Beer, the Wall Street Journal reported Tuesday, citing a letter sent to Boston Beer founder Jim Koch. In the letter, Green Thumb CEO Ben Kovler said the merger would allow his company, currently listed in Canada, to be listed on a major US exchange, WSJ reported. The report also attributed Kovler as saying that he would be able to make a superior offer for Boston Beer, the maker of Sam Adams lager, and ...