Besides oil, industry in Oman still consists largely of small-scale food-processing enterprises. Many new industries were set up in the 1980s, including a cement plant with an annual capacity of 609,000 tons. In 1995, Oman's cement production totaled 1.4 million tons. The majority of these manufacture non-metallic mineral products followed by wood and wood products, and fabricated metal products. The Rusail industrial estate had 81 working factories by 1996, with 15 more under construction. The $250 million Salalah Container Port opened in 1998 its hoped to be a magnet for value-added manufacturing enterprises. Another $250 industrial port in the Sohar on which construction began in 1999 is expected to be operational in 2003. By the latest available estimate, industry comprised 40% of the GDP in 1999.