(Bloomberg) -- A state-backed Chinese developer facing mounting signs of concern in credit markets told some creditors Tuesday that it’s been working with two major shareholders regarding its debt load, according to people familiar with the matter.Most Read from BloombergXi’s Metal Curbs Risk Backfiring as G-7 Seeks China AlternativeLazard Fires Senior Banker for Inappropriate Behavior at PartyChina Restricts Export of Chipmaking Metals in Clash With USRussian General Still Missing as Defense Ch