This story is more detailed, and likely, more accurate.
Ukraine Says Its Rocket Engines Not Behind North Koreas Missile Success
Agree, and here is an abstract from Dailysignal:
The RD-250 rocket engine was produced at the Ukrainian Yuzhmash factory until 2001, Yuriy Radchenko, head of the State Space Agency of Ukraine, told journalists in Kyiv on Tuesday. At the Ukrainian facility, the double chamber, liquid-propellant RD-250 engines were mated with the Soviet R-36 ICBM during the Cold War. The engines were also used for the Cyclone 2 and 3 rockets, which Russia used to launch satellites into space until 2006 and 2009, respectively.
After the Soviet Unions breakup in 1991, the Ukrainian Yuzhmash factory continued to produce RD-250 engines, but solely for use in space rockets supplied to Russia. Both the RD-250 engines and the Cyclone rockets were made at Yuzhmash in the interests of Russia, Radchenko said. In total, 233 Cyclone rockets were produced in Ukraine and sent to Russia.
Russia cut its orders of the Cyclone rocket in 2006, and the Yuzhmash factory has not found another buyer. Only Russia currently possesses the rockets, all of which are mated with Ukrainian-made RD-250 engines. Russia has between seven and 20 of the Cyclone rockets stored in unknown locations, Radchenko claimed on Tuesday.
If North Korea did in fact receive modified RD-250 engines from an outside source, Ukraines space chief claimed it was from Russia, not Ukraine. They [Russia] can supply these engines from the finished rockets to whomever they want, Radchenko said.
Russia shares a 10.5-mile-long land border and shipping routes into North Korea. In the 1980s and 1990s, Moscow supplied Pyongyang with missile technology for the regimes Scud, Nodong, and R-27 (Musudan) rockets.
This dude is one of the top multi-billionare Oligarchs in Ukraine....known for often using "quasi-military forces" to enforce hostile takeovers of companies he's after and strong-arm tactics' to replace directors on the boards of companies he purchases stakes in.....and/or to gain his political interests.
He's a 'player' to wherever he can buy what he wants regardless if Russia or Kiev leaders...he has no loyalty but to his own interests..nobody likes doing business with him....