China-North Korea trade may be gaining steam, a new South Korean report says, citing the rising cost of foreign currencies used for international transactions and increased manufacturing activity along the border.

The assessment comes on the heels of the third consecutive month of increased China-North Korea trade, a welcome sign for the North’s economy depressed for nearly two years now due to tight border lockdowns.

According to the latest DPRK trade bulletin from the Korea International Trade Association (KITA), the price of the U.S. dollar rose last month from 4,800 to 5,600 North Korean won