By Reuters Staff 2 Min Read BANGKOK, Jan 6 (Reuters) - The world’s top canned tuna maker, Thai Union Group Pcl, said on Wednesday its factories were continuing to operate normally after 69 out of more than 23,000 workers at its plants southwest of Bangkok tested positive for COVID-19. In a statement, the company said it had tested 85% of employees, or 23,630 workers, in Samut Sakhon province, where a cluster of cases emerged at a shrimp market late last year. The company, which owns the Chicken of the Sea and John West, brands, said factories would operate but with fewer in-person meetings, deep cleaning and following government health guidelines.