UPDATE 1-FACTBOX-Steelmaker Ternium Sidor in Venezuelan takeover

(Adds production, value data from company news conference)

April 9 (Reuters) - Venezuela vowed on Wednesday to nationalize the OPEC country's largest steelmaker, Ternium Sidor, extending President Hugo Chavez's wave of state takeovers meant to create a socialist state.

The following are key facts about the Argentina-controlled company, which is based in southeastern Venezuela.

PRIVATIZATION

Siderurgica del Orinoco (Sidor) was privatized in 1997. Seventy percent of Sidor was bought for $1.2 billion by a consortium, Amazonia, which was later absorbed by Ternium. As a result, the company is now called Ternium Sidor.

SHAREHOLDERS

Ternium (TX.N: Quote, Profile, Research) owns 60 percent of the company. Ternium is legally based in Luxembourg and is listed on the New York Stock Exchange but is controlled by one of Latin America's largest industrial conglomerates, the privately held Argentine company Techint.

The Venezuelan state has kept 20 percent of the company since its privatization.

Workers and ex-workers have another 20 percent. Initially, post-privatization, the workers had 10 percent but Amazonia later turned over to them another 10 percent.