(Yicai  Global) March 19 -- Several Chinese tire makers and sellers are set to  jack up their prices as much as 10 percent as their costs have soared,  they said in recent statements.

Singapore-based Giti Tire will raise its Chinese tire prices by 2 to 3 percent from April 1, it said in its statement.

Hawk  International Rubber will adjust its whole portfolio's prices with an  average increase of 3 percent from April 1, the company announced. Zibo  Tianlun International Trade will lift its rates by 3 to 5 percent today  as its costs have skyrocketed, it said. Fengyuan  Tire Manufacturing will raise the supply price for some products by 2  to 3 percent from March 25, it said citing the rising costs and the  country's tightening environmental protection policies. All three firms are based in China's eastern Shandong province. 

Guangzhou-headquartered  Vanlead Group will increase all its brand prices by from 2 to 4 percent  from tomorrow as its expenditures on raw materials continue to  escalate, it advised. 

Costlier supplies have directly affected tire prices, Baiinfo.Com, China's largest provider of bulk raw material market information,noted.  US-based Dow Chemical will increase the price of its polymers,  sealants, silicone rubber and other products by up to 10 percent from  April 1.

Editor: Ben Armour