In 2018, Apple spent $60 billion with 9,000 American component suppliers and companies, an increase of more than 10 percent from the year before, supporting more than 450,000 jobs.

Just over a year ago, component manufacturer Finisar was awarded $390 million from Apple’s Advanced Manufacturing Fund. To expand production of a critical part of the TrueDepth camera system, introduced with iPhone X, Finisar turned an unoccupied building in Sherman, Texas into a bustling operation full of people who will supply that future business.

"Since 2011, the total number of jobs created and supported by Apple in the United States has more than tripled — from almost 600,000 to 2 million across all 50 states," the company said in a statement.

On January 2, the company revised its expected revenues from $89 billion to $84 billion for the first quarter of fiscal 2019. However, it’s the company’s shares fell after it lowered its revenue estimate.

Cook had acknowledged, in a letter to investors, that the revenue shortfall in its guidance was partly due to China's trade tensions with the US. The slowdown in the Chinese economy also impacted its revenue, he said.