Apple, which partnered with GT Advanced on sapphire goods, says it will continue to work with state and local officials as it considers its next steps.
GT's filing, which sends company's stock tumbling about 90 percent, surprises the market and suggests a breakdown in its relationship with Apple.
Buyers of the new phone may have to wait a while to get it as Apple supplier Foxconn struggles to ramp up production, says the Wall Street Journal.
Big orders from its top client are propping up the Taiwanese company in an increasingly tough market.
China Labor Watch and Green America say the iPhone maker hasn't lived up to its commitments to improve worker conditions in a China factory.
But Samsung says allegations China-based supplier HEG Electronics employes children under the age of 16 at its facility are false.
Masahiro Shinada says Panasonic's bet on OLED comes ahead of a drop in price for the luxurious TV tech, and that its plasma experience will give it an edge over rival LG.
The tech titan will reportedly debut both a 12.9-inch iPad Pro and an iPad Mini 4 during its big product launch on Wednesday, rather than wait until later this year.
The German automotive supplier plucks Seval Oz from Google's self-driving car project to lead a new division focused on intelligent transportation systems.
In a move to condemn illegal child labor, the Korean electronics giant says it will reduce orders with the supplier by 30 percent.