References
- about.usps.com
International inbound mail and packages from China and Hong Kong Posts - Newsroom
3 links - U.S. Customs and Border Protection
CBP Proposes New Rule to Strengthen Enforcement and Limit Duty Exemption for Low-Value Shipments
2 links - about.usps.com
China - International Weather Alerts - Newsroom
3 links - AP News
China imposes 15% tariffs on coal, LNG in response to Trump's tariffs
2 links - www.mof.gov.cn
国务院关税税则委员会关于对原产于美国的部分进口商品加征关税的公告
4 links