Purchasing 300,000 tons monthly of used iron rails to China, to Indonesia

We are buying used iron rails, iron scrap. We could be interested in up to 300,000 tons/month of used iron rails.
If you can supply such quantities do not hesitate to write me all the information and the price at which you offer this material. 
Our interest is to purchase for the Chinese and Indonesian markets.
Please do not hesitate to contact us if you have an offer.