The document also reveals Smithfield tried to buy a packaged meats company.

Company announced plans to close Portsmouth, Va. facility in November 2011.

Starboard Value is urging the pork processor to pass on the Shuanghui buyout.

Higher grain prices also made for a challenging fiscal year for hog production.

Company has launched a year-long campaign to commemorate the event.

Company is satisfied with investment return.

Purchase price reflects export, packaged meats premium, ratings agency says.

Investigations to determine whether shareholders could have received a better deal.

Executives discuss what the deal means for the global pork industry as well as for both companies.

The company will become a wholly owned independent subsidiary of Shuanghui International Holdings.