The Responsibility Bonus is part of Smithfield's #ThankAFoodWorker initiative and will go to the firm's hourly production and distribution center team members.
The impact of COVID-19 in pork packing plants depends on the number of plants that must be shut down at any one time and whether there are other plants to which those hogs can economically flow.
These donations, valued at more than $30 million, join the more than $3 million in cash and in-kind contributions previously announced as part of Smithfield's COVID-19 response.
Before the pandemic, the Yamachiche plant's weekly slaughter capacity was 28,000 hogs.
More than 550 independent family farmers supply the South Dakota plant.
South Dakota plant supplies nearly 130 million servings of food per week, or about 18 million servings per day, to the country.
Secretary of Health Kim Malsam-Rysdon says the South Dakota plant accounts for about 80 COVID-19 cases so far.