(ShareCast News) - Atlantic Coal said its unaudited turnover for the nine months ended 30 September 2015 rose 26% to around $17.8m and it expects second-half turnover to at least match the first half.The AIM-listed anthracite coal mining company, which plans to release unaudited revenue figures in its quarterly statements going forward, said it was experiencing "a number of positive factors".It pointed to continuing high levels of production and sales for both clean coal and run of mine coal, a healthy level of inventory going into the high-demand winter period and increasing sales prices from 12 October.In addition, the company highlighted increasing efficiencies in production and transport.Managing director Steve Best said: "I am pleased to report an excellent increase in turnover for the nine months to 30 September 2015, reflecting our impressive year-on-year increase in production and sales, as reported on 1 October 2015."Compared with the same period in 2014 we have increased turnover by over $3.7m, an increase of circa 26%. This amount is only just short of the total turnover for 2014 of $18.4m and we therefore look forward to exceeding our 2014 revenues in 2015."At 1050 BST, Atlantic Coal shares were up 7.4% at 0.15p.