United States-based Emerson Electric expects promising revenue growth after the mainland's World Trade Organisation entry. Emerson Asia-Pacific president Ajeet Singh said the company's mainland business had shown strong annual growth in recent years. Emerson, which started its mainland direct investments in the early 1990s, has 21 manufacturing and three non-manufacturing operations with more than 9,000 employees. The company's total mainland investment amounted to US$300 million to US$400 million and most operations were profitable, said Mr Singh. He said Beijing's WTO entry would boost the economy and help Emerson, which posted operating profit of US$2.3 billion last year. Its mainland businesses include industrial automation and process-control and manufacture of appliances and tools. The company is also in the heating, air-conditioning and electronics and telecommunications businesses. Emerson's latest investment is in a scroll compressor plant in Suzhou through subsidiary Copeland Scroll. Mr Singh said the group's investment strategy was to expand in the mainland, Taiwan and Hong Kong.