Rigley Pharmaceuticals is a small pharmaceutical manufacturer in the United States. The firm is looking to expand its line of vaccines to Namibia, a country in southwest Africa. The Namibian economy is picking up and the country is looking for vaccines, but navigating the market from abroad is challenging. Rigley's senior leadership is also wary of taking on 100% of the risk in expanding its product line to a foreign country and would prefer the assistance of a Namibian firm.

Given these circumstances, what would be the best method for Rigley to expand to Namibia? Explain the reasoning behind your decision with relevant examples of the benefits of the chosen method.