Huber Carbonates, LLC, a subsidiary of J.M. Huber Corporation, announced a price increase for its industrial calcium carbonate products. The increase is effective Dec. 1, 2015, or as current contracts allow. Prices will increase an average of 5% to 10% depending on product and packaging.   While Huber says it continues to focus on minimizing the inflationary impact on its ground calcium carbonate business, cost increases in materials, packaging, freight, regulatory compliance, labor and capita...