ExxonMobil Chemical will invest in plants in Singapore and Antwerp, Belgium, to boost output of specialty hydrocarbon fluids by around 10 percent by 2016. Included are solvents, dispersants and carriers used in lubricants, additives, metalworking fluids, rolling oils, drilling muds and other specialties. Effective Oct. 1, Shell Singapore appointed Goh Swee Chen, the companys first female chief executive in Asia-Pacific, to succeed retiring chairman Lee Tzu Yang.