JSC Izhevsk Electromechanical Plant or IEMZ Kupol for short is a Russian military R&D enterprise founded in 1957. It is located in Izhevsk. It is part of the state-owned Almaz-Antey holding. From Wikipedia
Evidence shows Chinese L550E engines continue to be disguised as industrial refrigeration units to maintain shipments to state-owned IEMZ Kupol
