Changes

*Hayward, John (September 29, 2017). [http://www.breitbart.com/national-security/2017/09/29/china-shuts-north-korean-owned-businesses-comply-u-n-sanctions/ China Shuts Down North Korean-Owned Businesses to Comply with U.N. Sanctions]. ''Breitbart News''. Retrieved October 1, 2017.

*Hayward, John (September 29, 2017). [http://www.breitbart.com/national-security/2017/09/29/china-shuts-north-korean-owned-businesses-comply-u-n-sanctions/ China Shuts Down North Korean-Owned Businesses to Comply with U.N. Sanctions]. ''Breitbart News''. Retrieved October 1, 2017.

*[https://www.voanews.com/a/china-orders-north-korean-business-closed-under-un-sanctions/4048089.html China Orders North Korean Business Closed Under UN Sanctions]. ''Voice of America'' (from the ''Associated Press''). September 28, 2017. Retrieved October 1, 2017.

*[https://www.voanews.com/a/china-orders-north-korean-business-closed-under-un-sanctions/4048089.html China Orders North Korean Business Closed Under UN Sanctions]. ''Voice of America'' (from the ''Associated Press''). September 28, 2017. Retrieved October 1, 2017.

However, China's cooperation and adherence to the sanctions was, at least, in doubt:

However, China's cooperation and adherence to the sanctions was dubious, at the very least:

*Woo, Ryan; Xu, Muyu (December 26, 2017). [https://www.reuters.com/article/us-china-economy-trade-northkorea/china-halts-oil-product-exports-to-north-korea-in-november-as-sanctions-bite-idUSKBN1EK0FB China halts oil product exports to North Korea in November as sanctions bite]. ''Reuters''. Retrieved December 26, 2017.

*Woo, Ryan; Xu, Muyu (December 26, 2017). [https://www.reuters.com/article/us-china-economy-trade-northkorea/china-halts-oil-product-exports-to-north-korea-in-november-as-sanctions-bite-idUSKBN1EK0FB China halts oil product exports to North Korea in November as sanctions bite]. ''Reuters''. Retrieved December 26, 2017.

*Darrah, Nicole (December 27, 2017). [http://www.foxnews.com/world/2017/12/27/china-spotted-illegally-selling-oil-to-north-korea-report-says.html China spotted illegally selling oil to North Korea, report says]. ''Fox News''. Retrieved December 27, 2017.</ref>

*Darrah, Nicole (December 27, 2017). [http://www.foxnews.com/world/2017/12/27/china-spotted-illegally-selling-oil-to-north-korea-report-says.html China spotted illegally selling oil to North Korea, report says]. ''Fox News''. Retrieved December 27, 2017.

*Brunnstrom, David; Heavey, Susan (December 28, 2017). [https://www.reuters.com/article/us-northkorea-missiles-china-trump/trump-says-china-caught-red-handed-allowing-oil-into-north-korea-idUSKBN1EM1IY Trump says China 'Caught RED HANDED' allowing oil into North Korea]. ''Reuters''. Retrieved December 28, 2017.</ref>

**September 21, 2017—President Trump signed an executive order giving the Treasury Department additional authority to sanction entities doing business and "significant trade" with North Korea, including foreign banks.<ref>Multiple references:

**September 21, 2017—President Trump signed an executive order giving the Treasury Department additional authority to sanction entities doing business and "significant trade" with North Korea, including foreign banks.<ref>Multiple references:

*Besheer, Margaret (Septembre 21, 2017). [https://www.voanews.com/a/trump-imposing-new-sanctions-on-north-korea-/4038478.html Trump Imposes New Trade Sanctions on North Korea]. ''Voice of America''. Retrieved September 21, 2017.

*Besheer, Margaret (Septembre 21, 2017). [https://www.voanews.com/a/trump-imposing-new-sanctions-on-north-korea-/4038478.html Trump Imposes New Trade Sanctions on North Korea]. ''Voice of America''. Retrieved September 21, 2017.