The U.S. Senate Foreign Relations Committee approved legislation on Thursday that would tighten sanctions on North Korea.

The suggested measures would block any potential activity considered to contribute to North Korea’s nuclear program, currency flows, cyber attacks and human rights abuses.

In addition to restricting North Korea’s nuclear program and arms-related materials, the bill sanctions any entities engaging in the trade of illicit goods, including luxury and counterfeit goods. The measures are the toughest yet, restricting activities that were legitimate before, such as resources exports.

The bill also suggests imposing secondary sanctions on actors doing business in North Korea. China,