According to Reuters, those clothes you wear that say “made in China” may actually have been sewn by the downtrodden workers in North Korea in its state-owned factories. The money paid to North Korea can be funneled into its weapons program.

Quartz.com reports:

In recent years, North Korea had ramped up the practice as UN sanctions financially squeezed leader Kim Jong-un’s government. Go Myong-hyun, a researcher with the Asan Institute for Policy Studies, estimates that there are about 20,000 North Korean nationals in northeast China alone, working in labor-intensive jobs such as garment manufacturing and bringing in between $100 million to $200 million every year for the regime.

One report states that among the top exports of North Korea are Non-Knit Men’s coats ($169 million), Non-Knit Men’s suits ($153 million), Non-Knit Women’s Coats ($131 million), and Non-Knit Women’s Suits ($97 Million).

Radio Free Asia reported in 2016 that Calvin Klein and Levi’s were made in part by North Koreans, although the companies may not have known that.