“Where did North Korea get the fertiliser it sold …

"Where did North Korea get the fertiliser it sold to us?" - The Nation, May 31, 2006
South Korea donates fertiliser to North Korea as a part of its cooperation to assist with food shortages in the North. This activity is handled by a government firm named the Korea Trade-Investment Promotion Agency (Kotra).
Kotra recently claimed that North Korea exported a total of 25,000 metric tonnes of fertiliser with a value of US$5 million [Bt191 million] to Thailand in 2005.
Kotra reported it had requested cooperation from Thailand in disclosing the type of fertiliser imported from North Korea, but the Thai government has so far refused to provide any details...