(Adds trade union warning of industrial action)
By Angeliki Koutantou
ATHENS, March 27 (Reuters) - A Greek minister on Monday accused international lenders of reneging on a 2015 bailout deal by trying to force a fire-sale of its main electricity utility PPC to serve domestic and foreign business interests.
Differences between Athens, the EU and the IMF over how Public Power Corp (PPC) will relinquish its dominance of the Greek market are a stumbling block to concluding a bailout review that would unlock fresh loans for cash-strapped Greece.
The state controls 51 percent of PPC, the EU's second-largest producer of coal-fired electricity. PPC commands about 90 percent of the Greek retail electricity market and 60 percent of its wholesale market.
Under terms of Greece's 86 billion euro ($93.6 billion) 2015 bailout deal PPC is obliged to reduce both to less than 50 percent by 2020.
Although it is not clearly specified in the deal, lenders want Greece to sell some of PPC's assets.
Greece last year launched power auctions to private operators as a temporary mechanism and has proposed that PPC teams up with private companies to help to achieve this target. The lenders, however, doubt the effectiveness of the measure.
"What they want is that power production infrastructure of up to 40 percent -- PPC's coal-fired production -- is sold. This is what they want right now, which is beyond the (2015) deal," Interior Minister Panos Skourletis, a former energy minister, told Greek state television.
Skourletis on Monday accused the lenders of pressing the country to sell-off PPC units at a very low price to serve European and domestic competitors.
"It is an assault which has set its sights on PPC's assets to pass it on to specific European and domestic business interests at a humiliating price," Skourletis said in an opinion piece for the Efimerida Ton Syntakton daily.
Some members of Prime Minister Alexis Tsipras's leftist ruling coalition and PPC's power unions have strongly resisted the sale of PPC's coal-fired units.
The head of PPC's main labour union GENOP/DEH, which represents the group's 18,000 workers, warned of industrial action should the government sell PPC units.
"Once the government ... spells out what it wants to do and seeks Greek parliament's approval, since the plan cannot go ahead otherwise, then we will take appropriate action," union leader George Adamidis told Reuters.
Another Greek minister said on Monday that the government wants to keep PPC under state control and accused the IMF of opening issues that had closed with Greece's first bailout review last year.
"Our aim is self-evident, to have a state-owned PPC, not because we have any kind of obsessions but because the state must be able to continue having influence over the energy sector," Greek deputy foreign minister George Katrougkalos told Realfm radio. ($1 = 0.9189 euros) (Editing by David Goodman and Keith Weir)