The first sugar mill in the state was built on Lanai in 1802 and the first sugar plantation was established a year later. By the American Civil War the demand for sugar was high. The industry was controlled by five main companies – C. Brewer & Co., Theo H. Davies & Co., Amfac, Castle & Cooke and Alexander & Baldwin. People were brought in to work on the new sugar plantations from a number of different countries including China, Japan, Korea, Portugal and the Philippines.