Kyowa Kirin Inc.’s board of directors has approved plans to invest up to $530 million to build a new, state-of-the-art manufacturing facility in Sanford, North Carolina.   The 171,700-square-foot, two-reactor facility will accelerate the company’s development and production of biologic therapies for patients with rare and serious diseases.    “The extraordinary complexity of the medicines we manufacture requires specialized skills and resources that are in plentiful supply in Sanford and...