The country’s surplus wheat stocks had piled up to 4.5 million tons as it failed to export excess grain because of high domestic prices and quality constraints. A failure means crops risk rotting in storage houses instead of being sold on world markets to cash in on good prices. Punjab purchased 4.0 million tons of wheat during the current season, while Sindh procured 1.2 million tons and Pakistan Agricultural Storage and Services Corporation (Passco) procured two million tons. There are carry forward stocks of 2.5 million tons with Punjab and 0.3 million tons with Sindh. Sources said currently, Punjab government had 6.5 million tons wheat stocks, Sindh 1.2 million tons, Passco two million tons, while Khyber Pakhtunkhwa has stocks of 0.3 million tn.