Germany's economics ministry said Tuesday it has agreed with the workers' council of General Motors Corp.'s (GM) German unit Adam Opel AG to only back the investor in GM's European operations which provides the most bearable restructuring model for GM's local sites.

Earlier Tuesday, Economics Minister Karl-Theodor zu Guttenberg and his state secretary Jochen Homann met with the heads of Opel sites' workers council.

"All participants emphasized the joint effort that that solution will be accepted after an unbiased examination of all yet to presented company and restructuring plans that has the most bearable solution for the future of the German/European sites," the statement said.

The ministry also stressed that if GM were to file for Chapter 11, the company must remain "capable to act" and this "mustn't pressure to any premature decisions."

-By Andrea Thomas, Dow Jones Newswires; +49-30-288-8410; andrea.thomas@dowjones.com