(Reuters) - Dropbox Inc's shares closed at $28.42, up more than 35 percent in their first day of trading on Friday, as investors rushed to buy into the biggest technology initial public offering in more than a year even as the wider sector languished.

LONDON (Reuters) - Britain's Rolls-Royce said its Trent 7000 engines which power the Airbus A330neo jet are not affected by the issues on the Trent 1000 engine, which have needed unscheduled maintenance as parts have worn out more quickly than expected.

WASHINGTON (Reuters) - Federal Communications Commission Chairman Ajit Pai said he shares the concerns of U.S. lawmakers about espionage threats from Chinese smartphone maker Huawei Technologies Co and plans to take "proactive steps" to ensure the integrity of the U.S. communications supply chain.

SAN DIEGO (Reuters) - Qualcomm Inc re-elected its board of directors on Friday with weak support from shareholders, who grilled the U.S. chipmaker over its strategy following its successful defense against a $117-billion hostile bid from Broadcom Ltd.

WASHINGTON (Reuters) - Federal Communications Commission chairman Ajit Pai said in a letter released Friday he plans to take "proactive steps" to ensure the integrity of the communications supply chain after concerns about by Chinese firms.

(Reuters) - Verified Facebook pages of Elon Musk's rocket company SpaceX and electric carmaker Tesla Inc disappeared on Friday, minutes after the Silicon Valley billionaire promised on Twitter to take down the pages when challenged by users.

(Reuters) - Automakers have launched an online tool that will allow U.S. car owners, insurers and regulators search for open recalls, an auto trade group said on Friday.

(Reuters) - Qualcomm Inc shareholders on Friday re-elected 10 directors to the mobile chipmaker's board with tepid support in the wake of an extraordinary turn of events that left shareholders with no other choices and at least one advisory firm urging a protest vote.

(Reuters) - Spotify Technology SA said on Friday it uncovered 2 million users of its free service who had blocked advertising without paying, highlighting a potential revenue risk for the soon-to-be public company.

NEW YORK (LPC) - Uber Technologies’ self-arranged term loan B was increased to US$1.5bn, justifying the taxi app company’s unconventional approach to raising the loan and succeeding despite news that one of the company’s self-driving cars had killed a pedestrian.

WASHINGTON (Reuters) - U.S. lawmakers on Friday formally asked Facebook Inc's Mark Zuckerberg to explain at a Washington hearing how 50 million users' data got into the hands of political consultancy Cambridge Analytica.

HONG KONG (Reuters) - Smartphone maker Huawei Technologies Co Ltd [HWT.UL] said it has elected a new board in its first reshuffle since 2012, shedding some light on the company's succession plans following speculation about the retirement of founder Ren Zhengfei.

The City of San Diego, Calif. is suing consumer credit bureau Experian, alleging that a data breach first reported by KrebsOnSecurity in 2013 affected more than a quarter-million people in San Diego but that Experian never alerted affected consumers as required under California law. The lawsuit, fil...

(Reuters) - Qualcomm Inc shareholders on Friday re-elected 10 directors to the company's board at the mobile chipmaker's annual meeting.

(Reuters) - Dropbox Inc's shares soared around 40 percent in their market debut on Friday as investors rushed to buy into the biggest tech IPO in more than a year.

(Reuters) - Streaming music leader Spotify Technology SA on Tuesday filed for a direct listing of its shares.

PARIS (Reuters) - Carrefour said it has joined forces with Google to create an online voice assistant called "Lea" as part of the French retailer's digital expansion.

WASHINGTON (Reuters) - The leaders of the U.S. House Energy and Commerce Committee on Friday wrote Facebook Inc chief executive Mark Zuckerberg detailing new concerns about the social media company's use of data and formally requesting that he testify at a future hearing.

HONG KONG (Reuters) - Tencent Holdings Ltd's shares fell more than 4 percent on Friday, wiping out around $23 billion of market value, after the Chinese internet firm's largest shareholder, Naspers Ltd , lowered its stake for the first time in 17 years.

(Reuters) - Having topped expectations with the upsized price of its initial public offering, Dropbox Inc on Friday faces its next big challenge: a successful launch of trading when global stock markets are the defensive and tech shares are particularly soft.