The company said it is still engaged with the regulator and early this year put a proposal to settle the matter.
If a settlement can't be reached, GPG said a hearing is unlikely to happen before the second half of 2016.
"While the pensions schemes are under investigation by the UK Pensions Regulator, we cannot pass on the success of the strong and cash generative Coats business by way of returns to shareholders," the company said.
"It is entirely appropriate that the company fulfils all obligations to its pension schemes, and the board and management continue to work to find a route forward balancing the interests of all GPG stakeholders."
As part of the rebranding, GPG announced the resignation of directors Rob Campbell, Scott Malcolm and Waldemar Szlezak from March 2.
Coats chief executive Paul Forman, chief financial officer Richard Howes and industrial unit head Rajiv Sharma will join the board as executive directors and David Gosnell and Alan Rosling as independent directors.
Coats' industrial division increased revenue 3 per cent to US$1.24 billion, while earnings gained 16 per cent to US$128 million, while its crafts division reported a 10 per cent drop in sales to US$442.8 million, for an 87 per cent slump in earnings to US$2.8 million.
The company anticipates the sales of its EMEA crafts division will let it focus on more profitable business.
The transaction is expected to be completed in the second quarter of this year.
GPG's triple-listed shares last traded at 45 cents on the NZX, and are unchanged this year.