Huber Carbonates, LLC, a subsidiary of J.M. Huber Corp., has declared a price increase for its industrial calcium carbonate products. The increase is effective December 1, or as current contracts allow. Prices will increase an average of five to 10 percent depending on product and packaging. The company stated that “While Huber continues to focus on minimizing the inflationary impact on its ground calcium carbonate business, cost increases in materials, packaging, freight, regulatory compliance, labor and capital investments necessitate the pricing adjustment.”