One of the losing bidders to build part of Honolulu’s planned rail line has decided not to further appeal the decision.

Sumitomo Corporation of America announced Tuesday it won’t seek a judicial review of the decision by a state hearings officer upholding the city’s denial.

The other losing bidder, Bombardier Transportation USA Inc., last week filed a lawsuit in Hawaii Circuit Court. Bombardier has also asked the Federal Transit Authority to review the disqualification of its rail proposal.

The $574 million contract went to Ansaldo Honolulu in January.

Gino Antoniello, a Sumitomo vice president, says the company still disagrees with the rulings but doesn’t want to stand in the way of the project moving forward.