Merck & Co. will expand its presence in Singapore through new manufacturing, marketing and research investments, according to a joint announcement from the pharmaceutical company and the Singapore Economic Development Board. Merck will spend $250 million over the next 10 years on improvements to its manufacturing site in Tuas, Singapore. It will also spend S$700 million on local research activities, it said. To contact the editor responsible for this story: Alan Soughley at asoughley@bloomberg.net.