LONDON, November 21, 2016 /PRNewswire/ -- Roskill is releasing its new report on Tungsten with forecasts to 2026 in the next month. It is essential reading for anyone requiring a comprehensive view of tungsten supply, demand, trade and prices. World production of tungsten concentrates is estimated to have fallen to nearly 78,500t of contained W in 2016, down from just over 82,000t the previous year. Although China - the world's largest primary tungsten producer - accounted for some 2,000t of this drop, there were also significant decreases from Canada, Australia and Russia due to mothballing or closure of some operations. (Logo: http://photos.prnewswire.com/prnh/20150909/264974LOGO ) Non-Chinese mine output accounted for just under 20% of primary tungsten supply in 2016, slightly lower than levels in 2015. While there have been new mining projects established in Vietnam, the UK and Spain in the last couple of years, increased production from these sources did not offset falls from established rest-of-world producers. Lower concentrates output in 2016 has occurred against a backdrop of subdued prices. Output of tungsten concentrates in 2015 exceeded demand and consequently led to a build up of stocks and falling prices. Concentrate prices are discounted against the key tungsten intermediate, ammonium paratungstate (APT). It also experienced oversupply and stockbuilding in 2015, and prices dropped from a range of US$275-335/mtu  at the start of 2015 to US$170-190/mtu in December that year. Factoring in the discount for concentrate, this is below the cost of production for many miners. The start of 2016 saw the tungsten market being driven by inventories and low prices, as miners sold off high-cost stocks and produced to meet contractual agreements. The low APT price, although since recovering to US$198-203/mtu in early November, has meant that availability of tungsten concentrates from outside of China has been tight since mid-2016. In the background of these supply and price swings, there has been growing demand for non-Chinese tungsten concentrates. This has been pushed by rest-of-world consumers attempting to gain more supply chain security, in an effort to avoid price rises similar to those in 2011. As a consequence, some processors have faced concentrate supply shortages and have looked to plug the gap by buying other tungsten intermediates such as oxides, or else by adapting their plants or increasing their use of tungsten waste and scrap.