The prices of sold production of industry in Poland increased by 0.4 percent m-o-m in June, according to preliminary data published by the Central Statistical Office (GUS). However, prices decreased 0.8 percent y-o-y. The biggest price increase was reported in mining and quarrying by (2.7 percent), followed by manufacturing (0.3 percent), which was boosted by the manufacturing of coke and refined petroleum products (16 percent), according to GUS.