CHINIOT - Brick kilns owners increased the price of bricks by Rs300 to Rs800 per 1,000 bricks. After the announcement from the federal govts imposition of 16 percent sales tax on bricks, the owner has increased the rates of bricks from Rs4,400 to Rs5200 per thousand. It was also learnt that some brick kilns stored the bricks on the other places and selling bricks in black market.