Merged company would have rivaled Nestle as the world’s biggest packaged food maker.
Workers’ group says 45 workers and 18 family members died over a period of 33 years.
Mizkan gets US factories in Kentucky and California as part of the deal.
Closure will affect about 280 salaried and hourly employees.
New factory is manufacturing hub for Axe, Rexona and Dove deodorant bands