SEGMENT INFORMATION AND CONCENTRATIONS

The Company considers itself to be a single reportable operating segment which designs, develops, manufactures and markets similar proprietary semiconductor products, including intellectual property. In reaching this conclusion, management considers the definition of the chief operating decision maker (“CODM”), how the business is defined by the CODM, the nature of the information provided to the CODM and how that information is used to make operating decisions, allocate resources and assess performance. The Company’s CODM is the president and chief executive officer. The results of operations provided to and analyzed by the CODM are at the consolidated level and accordingly, key resource decisions and assessment of performance is performed at the consolidated level. The Company assesses its determination of operating segments at least annually.

GEOGRAPHIC INFORMATION

Net revenue by geographic area presented based upon the location of the OEMs' headquarters are as follows (in millions):



	Fiscal Years Ended
	September 28, 2018		September 29, 2017		September 30, 2016
United States	$	1,946.2	$	1,615.4	$	1,455.0
China	982.8		1,018.8		971.2
South Korea	432.7		531.8		393.0
Taiwan	339.1		335.4		323.6
Europe, Middle East and Africa	144.6		117.4		102.1
Other Asia-Pacific	22.6		32.6		44.1
Total	$	3,868.0	$	3,651.4	$	3,289.0

During fiscal 2018, the Company updated the table above from prior period presentation of net revenue based on the country of destination to current period presentation of net revenue based on the location of the OEMs' headquarters. Prior periods have been reclassified to match the current period presentation.

The Company’s revenue to external customers is generated principally from the sale of semiconductor products that facilitate various wireless communication applications. Accordingly, the Company considers its product offerings to be similar in nature and therefore not segregated for reporting purposes.

Net property, plant and equipment balances, based on the physical locations within the indicated geographic areas are as follows (in millions):



	As of
	September 28, 2018		September 29, 2017
Mexico	$	449.4	$	465.9
Japan	328.4		166.4
United States	123.5		126.9
Singapore	222.7		112.1
Rest of world	16.9		11.0
	$	1,140.9	$	882.3

CONCENTRATIONS

Financial instruments that potentially subject the Company to concentration of credit risk consist principally of trade accounts receivable. Trade accounts receivable are primarily derived from sales to manufacturers of communications and consumer products and electronic component distributors. Ongoing credit evaluations of customers’ financial condition are performed and collateral, such as letters of credit and bank guarantees, are required whenever deemed necessary.

In fiscal 2018, 2017, and 2016, Apple, through sales to multiple distributors, contract manufacturers and direct sales for multiple applications including smartphones, tablets, desktop and notebook computers, watches and other devices, in the aggregate accounted for 47%, 39% and 40% of the Company’s net revenue, respectively. In fiscal 2017 and 2016, Samsung in the aggregate accounted for 12% and 10% of the Company’s net revenue, respectively. In fiscal 2017, Huawei in the aggregate accounted for 10% of the Company’s net revenue.

At September 28, 2018, the Company’s three largest accounts receivable balances comprised 66% of aggregate gross accounts receivable. This concentration was 53% and 54% at September 29, 2017, and September 30, 2016, respectively.