New Chinese data shows that North Korea continued to bring in fertilizer from China this past April, as agricultural demand may be rising.

According to data from China’s General Administration of Customs (GAC), China exported roughly $28.8 million worth of goods to North Korea in April, continuing the trend of increasing trade with North Korea. In March, China exported around $13 million worth of goods to North Korea, the majority of which were chemicals used as fertilizers, such as diammonium phosphate and urea.

Fertilizers again accounted for most of China’s exports to North Korea according