- PJSC Gazpromtrubinvest
- Address:Nagornaya street, h 22, b 5, Moscow, Russia
- D. S. International Ltd.
- Address:av. Mira 17 / 125
- Rodinamac Holdings Ltd
- Address:49, Ul. Mishina
- Stansigma, Ltd
- Address:Beloostrovskaya, St 20, Of.65
- Lipetsk Pipe Company Svobodny Sokol
- Address:1 Zavodskaya Sq.
- Ashlar
- Address:Ugreshskaya
1