"TMK" (Russian: ПAO Трубная Металлургическая Компания, romanized: Trubnaya Metallurgicheskaya Kompaniya, lit.

'Pipe Metallurgical Co., OJSC') (MCX: TRMK) is a leading global manufacturer and supplier of steel pipes, tubular solutions and related services for the oil and gas industry, and specialty tubular products and pipeline systems for the nuclear, chemical, mechanical engineering and construction industries.

TMK incorporated the Romanian mills TMK-Artrom and TMK-Resita, and the Russian Orsky Machine Building Plant.

In 2012 the new Research & Development Center in Houston (Texas, United States) was commissioned and the Trade House TMK subsidiary in Orsk (Orenburg region) was opened.

(GIPI) located in Oman and established a service joint venture with EMDAD in Abu Dhabi, the United Arab Emirates.

In 2013 TMK acquired pipe services and precision manufacturing assets incorporated into OFSi company (Houston, USA).

[4] In 2021, TMK announced the transaction for acquisition of 86.54% of shares in PJSC "ChelPipe" from controlling shareholder Andrey Komarov.

[10] TMK plants produce almost the entire range of existing pipes used in the oil-and-gas sector, the chemical and petrochemical industries, energy and machine-building, construction and municipal housing, shipbuilding, aviation and aerospace, and agriculture.

TMK delivers its products along with an extensive package of services in heat treating, protective coating, premium connections threading, warehousing and pipe repairing.

In the Urals Federal District accommodating two TMK entities, charity programmes are run through the corporate charitable foundation Sinara, a professional operator.