... ,Australia,South Africa,USA,Greece.....etc!!Character of potassium nitrate tech grade we are supplying is as follow:ItemsAnalysis ResultsKNO3 %>=99 ... appreciated!!Thank you very much!!Yours sincerely,Mr. SUNNanning Stull CO., LTDAdd: 11,12th Floor,Unit 2, Building 10,District C ... -771-5790766Fax:+86-771-5790667Mobile:+86-13607872333 POTASSIUM NITRATE(KNO3) TECH GRADE