www.pcimag.com/articles/97027-huber-announces-price-increase

Huber Announces Price Increase
October 28, 2012
ATLANTA – Huber Engineered Materials, a division of J.M. Huber Corp., has increased the price for its industrial calcium carbonate products. The price increase does not apply to Huber’s food and USP calcium carbonate grades.
The increase is effective December 1, 2012, or as current contracts allow. Prices will increase an average of four to nine percent depending on product grade and packaging.