Frank Rittner

Interpipe Ukraine produces steel pipes. Its products include casing OCTG, tubing line, and welded pipes. The company was founded in 1990 and is headquartered in Dnepropetrovsk, Ukraine.

Nizhnodnepropetrovski Truboprovod Zavod manufactures pipe and wheels. The Company's products are sold to companies active in the oil and gas, machinery, metal, and railway industries. It exports its products to the countries of the Commonwealth of Independent States, the countries of the European Union, the Latin America countries, the United States and others. The company is headquartered in Dnepropetrovsk, Ukraine.

Kazzinc JSC produces zinc with copper, precious metals, and lead credits. Its products include zinc, copper, lead, selenium, sulphuric acid, aluminum, sodium antimonate, cadmium, indium, thallium, gold, silver, tellurium, mercury, sulphate, and zinc oxide. The company was founded in 1997 and is headquartered in Ust-Kamenogorsk, Kazakhstan.

Interpipe Ltd. produces steel pipes and tubes. The firm is organized into three separate divisions: steel-delivers the raw material for the other two divisions, pipes and railway wheels. Its pipe products include seamless oil country tubular goods, seamless tube and pipe, welded tube and pipe and tube for machinery. The company was founded on December 30, 2005 and is headquartered in Nicosia, Cyprus.

McKinsey & Co., Inc. provides management consulting services. It specializes in design, marketing and sales, analytics, operations, transformation and restructuring, risk, strategy and corporate finance, and sustainability and resource productivity. The company was founded by James O. McKinsey in 1926 and is headquartered in New York, NY.