It's disappointing but didn't Roskill say that the demand will increase by 2018 just 3 weeks ago in your post on 6-15?
Growth in tungsten demand will be led by the Asian market, particularly China which accounted for 48% of consumption in 2013, states Roskill. China is forecast to further increase its share of global tungsten demand to 52% by 2018, outpacing both European and North American demand growth.