Yes...the same way someone can sell or stock cigarettes at a grocery store.
IIRC, JWs can't work for a tobacconist or at a counter specifically selling cigarettes, etc. in a larger store, according to articles in the mags. Would a JW who buys a grocery store or newsagents' businesss be expected to divest themselves of that profitable line that probably figured as a significant part of the business's goodwill?