Strike fears at Hanjin Heavy's Philippines shipyard are "unwarranted", an analyst has said.

About 30,000 workers at HHIC in Subic Bay have been threatening to walk out over delayed elections to recognise a union.

But Meritz Securities said that winning new tanker orders would be likely to deter a strike, according to The Investor daily.

The Manila Times reported that union leaders have agreed on a venue for an election to recognise three company unions.