Mismanagement and Inexperience Contributed to GT Advanced's Sapphire Failures - MacRumors
Skip to Content

Mismanagement and Inexperience Contributed to GT Advanced's Sapphire Failures

It's widely known by now that Apple and GT Advanced's sapphire partnership fell apart after the latter company was unable to produce enough high-quality sapphire to meet Apple's production needs, but The Wall Street Journal has taken a deeper look into GT Advanced's failures and its defective sapphire boules, which ultimately led the company to file for bankruptcy.

GT Advanced COO Daniel Squiller suggested in a court affidavit that Apple had essentially forced the company into a contract with "oppressive and burdensome" terms that made it impossible for GT Advanced to produce quality sapphire and meet deadlines, but the profile from The Wall Street Journal, largely sourced from Apple's court filings, paints a different picture, putting much of the fault on GT Advanced's mismanagement.

GT-logo2011-pms
The partnership between the two companies may have been doomed from the start, as GT Advanced had little experience mass producing sapphire before it inked a deal with Apple. A first attempt at a 578 pound sapphire boule was reportedly "flawed and unusable," while another was "cracked so badly" the sapphire was unusable. More than half of the sapphire boules that took $20,000 and 30 days to produce ended up in a "boule graveyard."

According to employees that spoke to The Wall Street Journal, an effort to hire enough staff to operate the sapphire furnaces led to management problems as there were employees who had little to do.

GT quickly set out to hire 700 staffers. Hiring moved so quickly that at one point in late spring, more than 100 recent hires didn't know who they reported to, a former manager said. Two other former workers said there was no attendance policy, which led to an unusual number of sick days.

GT managers in the spring authorized unlimited overtime to fill furnaces materials to grow sapphire. But GT hadn't built enough furnaces yet, so many workers had nothing to do, two former employees said.

"We just kept sweeping the floors over and over," one of the former employees said. "I just saw money flying out the door."

As the months passed and GT Advanced failed to meet necessary production milestones in a timely manner, it became clear that Apple was not going to use sapphire in the iPhone 6. According to court documents, while Apple was going in an alternate route for iPhone 6 and 6 Plus displays, GT Advanced was burning through money, spending $248 million in a single quarter. As described by GT Advanced COO Daniel Squiller, the deal ended up causing GT to "divert an inordinate amount of its cash and corporate resources" into the Mesa, Arizona facility.

Apple ended up withholding a final $139 million loan payment from GT Advanced, furthering its financial woes, and though Apple attempted to lend aid in the form of a partial payment and delayed loan repayments, GT advanced opted to file for Chapter 11 Bankruptcy protection in order to get out of its contracts after it "could not economically produce a product that Apple would accept."

Apple and GT Advanced reached an agreement to officially end their partnership in October, nullifying the terms of the original deal. GT Advanced has already begun shutting down sapphire production at the Mesa, Arizona plant and will decommission and sell its sapphire furnaces in order to repay the loan from Apple.

More on what went wrong with GT Advanced's sapphire production and images of some of the broken and cracked sapphire boules can be seen in The Wall Street Journal's original story.

Popular Stories

M5 MacBook Pro

RIP, MacBook Ultra

Monday October 19, 2026 9:37 am PDT by
Apple today sent out invites for an experience in Los Angeles on Wednesday, October 28, and the "Pro and tell" tagline on the invitation likely means that the rumored MacBook models with touch-enabled OLED displays will stick with MacBook Pro branding instead of the once-rumored "MacBook Ultra" name. The long-rumored "iPhone Ultra" ended up being named iPhone Duo, so speculation that Apple...
iPhone Duo Trio

Here's What Apple's Apps Look Like on the iPhone Duo

Tuesday October 20, 2026 11:12 am PDT by
With just three days to go until the iPhone Duo is released, Apple is getting ready for the launch. Behind the scenes, the App Store now has screenshots of Apple's built-in apps running on the Duo. We've seen some apps in marketing materials, but images of the ones we haven't seen give us an idea of what it will be like using the iPhone Duo day to day. Many apps are shown in landscape...
apple pro tell logo

Apple Announcing New Products Next Week: 'Pro and Tell'

Monday October 19, 2026 9:05 am PDT by
Apple's Greg Joswiak today hinted at new product announcements coming next week, sharing a social media post that says "Can't wait to pro and tell next week." Rumors suggest Apple is planning to debut the new MacBook Pro with an OLED touchscreen display, an M6 entry-level MacBook Pro, an M6 iMac, an iPad mini with an OLED display. Can't wait to pro and tell next week....

Top Rated Comments

156 months ago
Apple and GT Advanced's sapphire partnership may have been doomed from the start because GT Advanced had no experience with mass producing sapphire before it inked a deal with Apple. Its first attempt at a large 578 pound sapphire boule, created just before the deal was finalized, was reportedly "flawed and unusable."
We've all been slinging mud at GT, but how in the world did Apple enter an agreement with these clowns without them proving that they could deliver?

That said, Apple clearly had a backup plan to use the standard gorilla glass on the 6/6+ and executed it when GT didn't deliver. Good planning on that front likely saved the year (what happens when you have millions of phones ready to go and no covers?).
Score: 25 Votes (Like | Disagree)
156 months ago
We've all been slinging mud at GT, but how in the world did Apple enter an agreement with these clowns without them proving that they could deliver?

That said, Apple clearly had a backup plan to use the standard gorilla glass on the 6/6+ and executed it when GT didn't deliver. Good planning on that front likely saved the year (what happens when you have millions of phones ready to go and no covers?).

Why would any of that be Apple's responsibility? They gave a small company a huge opportunity but they didn't take it seriously enough and totally blew it.
Score: 15 Votes (Like | Disagree)
156 months ago
We've all been slinging mud at GT, but how in the world did Apple enter an agreement with these clowns without them proving that they could deliver?

That said, Apple clearly had a backup plan to use the standard gorilla glass on the 6/6+ and executed it when GT didn't deliver. Good planning on that front likely saved the year (what happens when you have millions of phones ready to go and no covers?).

Which is exactly why Apple put the terms that they did into the contract.
Score: 14 Votes (Like | Disagree)
wesk702 Avatar
156 months ago
Don't play with the big boys if you can't get your **** together.
Score: 8 Votes (Like | Disagree)
AngerDanger Avatar
156 months ago

Oh, yeah, you're supposed to make sure there are no frogs in the aluminum prior to heating. Easy mistake.
Score: 6 Votes (Like | Disagree)
japanime Avatar
156 months ago
What a bunch of boule!
Score: 5 Votes (Like | Disagree)
Latest Stories
Apple's iWork Apps Get 'Intelligent Assistant' and iPhone Duo Support
Apple's iWork Apps Get 'Intelligent Assistant' and iPhone Duo Support
6 minutes ago
Apple is Apparently Considering a Slightly Larger iPhone Duo
Apple is Apparently Considering a Slightly Larger iPhone Duo
10 minutes ago
Giant iPhone Duo Displays Coming to Four Apple Stores
Giant iPhone Duo Displays Coming to Four Apple Stores
1 hour ago
Apple Pulls Keynote, Pages and Numbers From App Store [Update: Back]
Apple Pulls Keynote, Pages and Numbers From App Store [Update: Back]
2 hours ago
Apple Updates More Apps With iPhone Duo Support
Apple Updates More Apps With iPhone Duo Support
3 hours ago
Apple Will Label Apps 'Made for iPhone Duo' in App Store
Apple Will Label Apps 'Made for iPhone Duo' in App Store
5 hours ago
Amazon Takes $49 Off iPad With Prices Starting at $399.99
Amazon Takes $49 Off iPad With Prices Starting at $399.99
6 hours ago
F1 on Apple TV Now Available in Dolby Atmos
F1 on Apple TV Now Available in Dolby Atmos
7 hours ago
Apple Reveals More Than 50 Apps That Will Be Updated for iPhone Duo
Apple Reveals More Than 50 Apps That Will Be Updated for iPhone Duo
7 hours ago
Apple Blocks Certificates That Could Help Attackers Fake Websites
Apple Blocks Certificates That Could Help Attackers Fake Websites
8 hours ago
Giant iPhone Duo Installations Spotted at Apple Fifth Avenue
Giant iPhone Duo Installations Spotted at Apple Fifth Avenue
9 hours ago
iPhone Duo 2 Prototypes Include Under-Display Face ID
iPhone Duo 2 Prototypes Include Under-Display Face ID
9 hours ago
Tesla App Gains iPad and iPhone Duo Support
Tesla App Gains iPad and iPhone Duo Support
13 hours ago
Apple Reportedly Boosts iPhone Duo Orders by 44%
Apple Reportedly Boosts iPhone Duo Orders by 44%
14 hours ago
Fortnite Returning to Australian App Store After Court Ruling
Fortnite Returning to Australian App Store After Court Ruling
14 hours ago
Apple Ordered to Open iPhone to Rival App Stores in Australia
Apple Ordered to Open iPhone to Rival App Stores in Australia
14 hours ago
Apple Suppliers Face Hurdles Cutting Circuit Board Emissions
Apple Suppliers Face Hurdles Cutting Circuit Board Emissions
15 hours ago
Things Updated for iPhone Duo With Adaptive Layout
Things Updated for iPhone Duo With Adaptive Layout
15 hours ago
Simplicity and Siri AI Are HomeView's Killer Features, Apple Says
Simplicity and Siri AI Are HomeView's Killer Features, Apple Says
16 hours ago
iPhone Duo Reviewers Really Miss Face ID
iPhone Duo Reviewers Really Miss Face ID
21 hours ago
Does the iPhone Duo Run Hot? Here's What Reviews Found
Does the iPhone Duo Run Hot? Here's What Reviews Found
22 hours ago
Apple Music's New Look is Now Live on Apple's Website
Apple Music's New Look is Now Live on Apple's Website
23 hours ago
Anthropic Launches Claude Duet, a Proactive AI Agent
Anthropic Launches Claude Duet, a Proactive AI Agent
23 hours ago
What 32,000 Folds Did to the iPhone Duo's Hinge
What 32,000 Folds Did to the iPhone Duo's Hinge
1 day ago
iPhone Duo's Hidden FaceTime Camera Takes 'Trash' Photos
iPhone Duo's Hidden FaceTime Camera Takes 'Trash' Photos
1 day ago
iPhone Duo Has 'Edge Light' Feature That Debuted on Macs Last Year
iPhone Duo Has 'Edge Light' Feature That Debuted on Macs Last Year
1 day ago
Apple Support App Updated for iPhone Duo's Larger Display
Apple Support App Updated for iPhone Duo's Larger Display
1 day ago
Amazon Sweetens the Deal on Entry-Level 16-Inch MacBook Pro With $570 Off
Amazon Sweetens the Deal on Entry-Level 16-Inch MacBook Pro With $570 Off
1 day ago
iPhone Duo Tips Over on MagSafe Stands When Unfolded
iPhone Duo Tips Over on MagSafe Stands When Unfolded
1 day ago
Apple Music's New Look Officially Announced
Apple Music's New Look Officially Announced
1 day ago