Metinvest holding's Khartsyzsk Pipe Mill from Ukraine increased production of large-diameter pipes by 17.9% year-on-year in January-July 2007 to 369,900 tons, including 28,900 tons in July, the mill said in a press release. July production fell 50% year-on-year. Production of large-diameter pipes with anti-corrosive grew 27.1% year-on-year in the seven months to 341,000 tons, including 25,900 tons in July. Large-diameter pipe production at Khartsyzsk rose 9.2% in 2006 to 595,700 tons.