Roibu, who served as general manager of Oltchim for 21 years, stepped down last week at OPSPI’s request.
Following his departure, 15 other senior managers, including Nicolae Radu Olaru, handed in their resignation.
Olaru previously served as deputy general manager at the chemical company.
Oltchim is majority owned by the Economy Ministry, with a 54.8% stake, while Germany’s PCC SE holds an 18.32% stake.
The company will be put up for sale September 18, as per an agreement signed with the International Monetary Fund under a EUR3.6 billion loan program.
According to the privatization strategy, Oltchim’s potential buyer will also have to take over total receivables of 1.8 billion lei (EUR400 million) held by the state.
The ministry recently said that over 10 investors bought auction documents for Oltchim’s privatization.