Sundance Resources is now fighting legal action on three continents over a 2010 plane crash in west Africa which killed the company's entire board of directors.

Eleven people were killed when a plane the company had chartered crashed en route to the company's iron ore project in the Democratic Republic of Congo.

All six Sundance board members - chairman Geoff Wedlock, chief executive Don Lewis, company secretary John Carr-Gregg and non-executive directors Ken Talbot, John Jones and Craig Oliver - were among those killed.

The iron ore company on Monday said it was facing a STG6 million ($A10.06 million) lawsuit in the UK from the family of James Cassley, an investment banker killed in the crash.

Mr Cassley was an employee of investment company GMP Securities Limited, who is named as the first defendant in the lawsuit, with Sundance named as second defendant.

His family allege that both companies are liable for negligence in relation to the plane crash.

Meanwhile, Mr Cassley's family is involved in legal action against Sundance's 90 per cent owned subsidiary Cam Iron SA in Cameroon.

The families of nine of the 11 killed in the crash, including those of Mr Lewis, Mr Carr-Gregg, Mr Wedlock and Mr Jones are involved in the lawsuit.

A separate legal action involving the same families has also been launched in the US.

Sundance is one of six respondents listed in that law suit.

The company says it will defend itself against each of the actions.

 

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