Seversk is the site of the Siberian Chemical Combine, founded in 1954. It comprises several nuclear reactors and chemical plants for separation, enrichment, and reprocessing of uranium and plutonium.

Siversk (Ukrainian: Сіверськ, IPA: [ˈs⁽ʲ⁾i.wersʲk]; Russian: Северск, romanized: Seversk), formerly known as Yama (Яма) until 1973, is a city in Bakhmut Raion, Donetsk Oblast, Ukraine. Its economy has traditionally been based around the mining and processing of dolomite.

The Siberian Chemical Combine (Russian: Сибирский химический комбинат) was established in 1953 in Tomsk-7 now known as Seversk, in the Tomsk Region as a single complex of the nuclear technological cycle for the creation of nuclear weapons components based on fissile materials (highly enriched uranium and plutonium).

Established in 1953 in Tomsk-7 (now known as Seversk), the Siberian Chemical Combine (SKhK) played an important role in the Soviet nuclear weapons program. The facility produced plutonium and highly enriched uranium (HEU), and fabricated HEU and plutonium warhead components.

Dec 17, 2023 · Seversk: a name that might not ring a bell unless you’re into cities with more secrets than a spy novel. Tucked away in the cold steeps of Siberia and born out of the Cold War’s cloak-and-dagger days, Seversk (formerly known as Tomsk-7) isn’t your typical hometown.

It is considered the most serious Russian nuclear accident after Chernobyl and the Kyshtym accident at Mayak. Tomsk-7 was a “secret city” in Siberia until 1992, when it reverted to its historical name of Seversk.

Seversk (Russian: Се́верск SYEH-veersk) is a city that lies to the north of Tomsk, Siberia. Seversk was once known as "Tomsk-7", a secret closed city of the Soviet Union. Tomsk-7 was off-limits to non-residents and only became known after the fall of the iron curtain, and remains closed to outsiders to this day.

Seversk (Russian: Се́верск, IPA: [ˈsʲevʲɪrsk]) is a closed city in Tomsk Oblast, Russia, located 15 kilometers (9.3 mi) northwest of Tomsk on the right bank of the Tom River. The population was 108,590 at the 2010 census and 109,106 at the 2002 census.

Seversk is the site of the Siberian Group of Chemical Enterprises, founded in 1954. It comprises several nuclear reactors and chemical plants for separation, enrichment, and reprocessing of uranium and plutonium. Nuclear warheads were being produced and stored on the premises.

Seversk (Russian: Се́верск SYEH-veersk) is a city that lies to the north of Tomsk, Siberia. Seversk was once known as "Tomsk-7", a secret closed city of the Soviet Union. Tomsk-7 was off-limits to non-residents and only became known after the fall of the iron curtain, and remains closed to outsiders to this day.