Chinese investors are not the only ones showing interest in purchasing Siemen’s 17% stake in Osram, according to a latest report from German business magazine Manager Magazin.

German automotive component maker Continental was said to offer to acquire Osram’s largest shareholder Siemen’s stake for EUR 50 (US $) per share, which would be the last opportunity to keep the lighting company a German-owned company.

Osram shares traded in between the prices of EUR 42.58 to EUR 51 per share between June and August, and its share value rose about 0.1 percent at EUR 54.11.

Continental, Osram and Siemens all declined to comment on the magazine report.

Last week, German media reported San’an Opto’s interest in acquiring Osram, and other potential bidders also include Go Scale Capital.

Chinese companies’ interests in acquiring high technology German companies has raised concerns for German government, which is evaluating whether measures should be implemented to protect key technologies.

Osram is a market leader in automotive lighting, and has developed new products such as smart LED headlights, and laser diodes such as Lidar technology in sensor systems for self-driving cars.