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.
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.
The German automotive supplier plucks Seval Oz from Google's self-driving car project to lead a new division focused on intelligent transportation systems.
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Jen-Hsun Huang also says even with low sales of the tablet so far, Nvidia's in the hardware market for the long haul.
In a move to condemn illegal child labor, the Korean electronics giant says it will reduce orders with the supplier by 30 percent.
The smartphone may not yet be officially unveiled, but a UK supplier is offering preorders.