North Korea follows Uganda and closes its embassy in Angola...Is it an aftereffect of restrictions on ”foreign currency earning”?

North Korea has closed its embassy in Angola, a friendly African country, following Uganda. The successive withdrawal of diplomatic missions was due to the tightening of sanctions against North Korea by the international community, which is hindering various foreign currency earning businesses.
It is analyzed that this is due to the occurrence of The Korean Central News Agency said on the 30th, ``Japan's Ambassador Extraordinary and Plenipotentiary visited the President of the Republic of Angola on the 27th and said farewell.''
Ambassador Extraordinary and Plenipotentiary Cho Byung-chul graciously conveyed the warm greetings that Chairman Kim Jong-un (General Secretary of the Workers' Party of Korea) sent to President João Lourenço of Angola.
North Korea established diplomatic relations with Angola in 1975, and after withdrawing its permanent diplomatic mission in 1998, it reopened it in 2013. Angola is Jose Eduardo dos San
North Korea is a traditional ally of North Korea, with former President Toth visiting Pyongyang three times. After the United Nations Security Council imposed sanctions in response to North Korea's first nuclear test in 2006.
We have continued to have a cooperative relationship. However, as the international community tightened sanctions against North Korea, Angola canceled its contract with North Korean construction company Mansudae in November 2017.
The North Korean workers who belonged to this company were notified to return to the country. Along with this, the Korean Central News Agency reported that North Korean Ambassador to Uganda Jung Donghak visited the President of Uganda on the 23rd to bid farewell.
It was reported that he said hello. North Korea's withdrawal of its African diplomatic missions may be interpreted as an expression of dissatisfaction with the international community's condemnation of nuclear tests and missile provocations by these countries.
has been done. At the United Nations General Assembly's First Committee (in charge of disarmament and international security) held on the 27th of this month (local time), three resolutions containing content related to North Korea were adopted, and Uganda is also a member of the United Nations General Assembly.
Ngorra also voted in favor of Resolution 45, which condemns North Korea's sixth nuclear test.