FRANKFURT/DUESSELDORF (Reuters) -Thyssenkrupp is sticking with plans to build a 3 billion euro ($3.5 billion) green steel site in the German city of Duisburg after rival ArcelorMittal scrapped similar plans, but called on the government to ensure more favourable conditions to make it work.

"We are sticking to our plan to complete the first direct reduction plant in Duisburg," Thyssenkrupp Steel Europe (TKSE) said in a statement.

"However, for the transformation to succeed under economically viable conditions, the framework conditions need to be adjusted and more speed is needed to expand the relevant infrastructure, particularly with regard to the hydrogen network and the securing of competitive energy prices."

($1 = 0.8678 euros)

(Reporting by Christoph Steitz and Tom Kaeckenhoff; editing by Matthias Williams)