Mobile telecommunications equipment manufacturing

FILE - In this June 4, 2018 file photo, Apple CEO Tim Cook speaks during an announcement of new products at the Apple Worldwide Developers Conference in San Jose, Calif. Apple is expected to announce Monday, March 25, 2019, that it’s launching a video service that could compete with Netflix, Amazon and cable TV itself. (AP Photo/Marcio Jose Sanchez, File)

Apple CEO Tim Cook reacts during the Economic Summit held for the China Development Forum in Beijing, China, Saturday, March 23, 2019. Cook says he's "extremely bullish" about the global economy based on the amount of innovation being carried out, and he's urging China to continue to "open up." (AP Photo/Ng Han Guan)

DJ Koh, Samsung President and CEO of IT and Mobile Communications, talks about the new Samsung Galaxy Fold smartphone during an event Wednesday, Feb. 20, 2019, in San Francisco. (AP Photo/Eric Risberg)

FILE - This Feb. 19, 2014, file photo shows the Facebook app icon on an iPhone in New York. Facebook says Apple is restoring a key development tool that the iPhone maker disabled Wednesday, Jan. 31, 2019. Apple's earlier move followed disclosure of a Facebook program that paid users, including teens, to download a "research" app that could extensively track peoples' app and internet usage. (AP Photo/Karly Domb Sadof, File)

In this Wednesday, Jan. 30, 2019, photo, visitors try out Samsung Electronics' Galaxy Note9 smartphones during an industrial fair in Seoul, South Korea. South Korean technology giant Samsung posted on Thursday, Jan. 31, 2019, a near-30 percent drop in operating profit for the last quarter after seeing slowing global demand for its memory chips and smartphones. (AP Photo/Ahn Young-joon)

FILE - This Oct. 22, 2018, file photo shows the iPhone XS, from left, iPhone XR, and the iPhone XS Max in New York. Apple hoped to offset slowing demand for iPhones by raising the prices of its most important product, but that strategy seems to have backfired after sales sagged during the holiday shopping season. (AP Photo/Richard Drew, File)

FILE - In this Dec. 18, 2018, file photo, a worker holds a sign promoting a sale for Huawei 5G internet services at a mobile phone retail shop in Shenzhen in south China's Guangdong province. China has called on the United States to ‘stop the unreasonable crackdown’ on Huawei following the tech giant’s indictment on charges of stealing technology, violating trade sanctions and lying to banks. (AP Photo/Andy Wong, File)

Fruits' cups with a mini flags are displayed on a refreshment corner as Huawei unveils it 5G chipsets in Beijing, Thursday, Jan. 24, 2019. Chinese tech giant Huawei has announced plans to release a next-generation smartphone based on its own technology instead of U.S. components, stepping up efforts to compete with global industry leaders. (AP Photo/Andy Wong)

FILE - In this July 31, 2018 file photo, employees walk past logos of the Samsung Electronics Co. at its office in Seoul, South Korea, Samsung is giving a weak fourth-quarter operating profit forecast, as the smartphone and memory chip maker contends with increased competition and softer chip demand. The announcement, Monday, Jan. 7, 2019, follows Apple’s disclosure that its revenue for the last quarter of 2018 will fall well below projections, a decrease the company traced mainly to China. Apple is one of Samsung’s chip customers. (AP Photo/Ahn Young-joon, File)