U-I acquired the Centerfield factory and company in 1940. They proceeded to close the factory in 1956, re-opened from 1958 to 1961, then sold it as scrap in April, 1966. The Beet Growers Sugar Company built an 800-ton factory in 1919 in Rigby, Idaho. U-I bought it in 1924, dismantled it in 1939, and used the factory for storage. In 1912, to reduce the need of imported seed, U-I purchased the Eastern Beet and Seed Farm from the American Sugar Refining Company. It was a seed-growing establishment near Idaho Falls, Idaho, established by ASR in 1906. U-I raised 250 tons of seed in 1914, then 750 tons in 1915. In 1915, U-I and the United States Beet Sugar Manufacturers Association created the United States Beet Seed Company to grow seed in Idaho Falls, as well as Utah, Colorado, and California. In 1917 the company produced 2779 tons of seeds. The labor consisted of "Japanese, Mexicans, and Asian Indians". The seed operation was closed in 1920, once European seed became available at the end of World War I.  Utah-Idaho sugar had regulatory issues beginning in 1907, being investigated by the United States House of Representatives, the U.S. Department of Labor, the U.S. Department of Justice, and the Federal Trade Commission. The 1911 Hardwick Committee of the House of Representatives looked into the Sugar Trust's violations of the Sherman Antitrust Act. Since American Sugar owned half of Utah-Idaho Sugar, they also looked into other dealings of Utah-Idaho, including stock watering, price fixing, and anticompetitive actions. As the Salt Lake Tribune said, the committee proposed to make executives answer "exceedingly embarrassing questions". The committee called for testimony from Thomas R. Cutler, Joseph F. Smith, and Charles W. Nibley. Smith had to be legally summoned to testify, as he would not appear willingly, likely due to his experience testifying at the 1904 Reed Smoot hearings. While American Sugar's involvement with Utah-Idaho was found to be improper, they also denounced Utah-Idaho's methods. These included the anticompetitive establishment of the Nampa, Idaho factory, the anticompetitive control over the Bear River Valley irrigation and water rights, and the questionable stock watering of December 1902 and other times, describing it as "the mania for overcapitalization". The committee also found extensive evidence of price fixing by the company, arguing Utah sugar consumers subsidized Midwest sugar consumers, since both regions paid the same freight costs, even though the factories were in Utah and Idaho.