iPhone chip supplier Dialog is planning for 'several scenarios' after admitting Apple could destroy its business

AP, Business Insider photoshopping

Apple CEO Tim Cook.

• Dialog Semiconductor is a British, listed firm which supplies power management chips to the iPhone.
• It's one of the fastest growing chip businesses in Europe - but shares plummeted on Monday after the firm admitted Apple could bring chip design in-house.
• Its chief executive said it would still supply chips for the iPhone in 2018, but it couldn't be certain about its 2019 deal with Apple for another few months.
• The news comes after another UK chip firm, Imagination Technologies, was sold off to a Chinese buyer after Apple pulled its business.

Shares in Dialog Semiconductor, the publicly listed British firm which supplies power management chips for the iPhone, are plunging after its chief executive admitted that Apple could one day bring chip design in-house.

CEO Jalal Bagherli said Apple probably had the capability to produce its own chips but said there was no indication that the firm was about to do so. Apple is Dialog's biggest customer.

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Nonetheless, Dialog is planning for "several scenarios," including Apple totally or partially replacing its chip. Bagherli added: "We are not talking about the entire business, or the entire chips in a phone."

In a conference call on Monday morning, Bagherli told analysts and investors: "Our position remains that we have no material change in our ongoing business relationship with Apple Inc. Specifically ... we continue to be included in new design engagements and opportunities in power management."

He said the firm wouldn't know until February or March the commercial terms of Apple's business for 2019. He said Dialog had already begun sharing chip designs for 2019's iPhone with Apple.

"We expect to remain Apple's main supplier," he added. "We feel it's reasonable to recognise Apple has the resources and capability to design its own [power management chips].

Business Insider

Dialog's share price is plunging.

"As far as 2018, I want to be clear that Dialog has no reason to believe its current expectation of business with Apple will be impacted by any such actions."

It's unusual for an a supplier to publicly comment on the relationship with Apple, but Bagherli sought "special dispensation" to talk about Dialog's biggest customer after a Nikkei report suggested the iPhone maker would bring chip design in-house.

The reports sent Dialog's shares plunging, as investors worried that the firm could meet the same fate as Imagination, the British chip firm which was hurriedly sold off in September after Apple stopped using its technology.

Bagherli pointed to the fact Apple is producing a bigger range of iPhones as a reason to be confident.

"I think it's fair to say we believe they can design the main [power management chip] for, say, a phone. They would probably have the capability for one. [...] You've all seen that the range of product is getting broader in terms of the low-end, mid-end, and high-end from before, when there was only one phone. Maybe lower specs could be used for developing countries, there could be a different power management chip. These are the types of things to think about."

Dialog's share price stands at €26.92 (£23.76), down more than 30% on a week ago.