SEGMENT AND GEOGRAPHIC INFORMATION At June 29, 2019 , we were organized into two reporting segments, OEM Laser Sources ("OLS") and Industrial Lasers &amp; Systems ("ILS"), based upon our organizational structure and how the CODM receives and utilizes information provided to allocate resources and make decisions. This segmentation reflects the go-to-market strategies and synergies for our broad portfolio of laser technologies and products. While both segments deliver cost-effective, highly reliable photonics solutions, the OLS business segment is focused on high performance laser sources and complex optical sub-systems, typically used in microelectronics manufacturing, medical diagnostics and therapeutic applications, as well as in scientific research. Our ILS business segment delivers high performance laser sources, sub-systems and tools primarily used for industrial laser materials processing, serving important end markets like automotive, machine tool, consumer goods and medical device manufacturing. Ondaxs and OR Laser's operating results have been included in our ILS segment. We have identified OLS and ILS as operating segments for which discrete financial information is available. Both units have dedicated engineering, manufacturing, product business management and product line management functions. A small portion of our outside revenue is attributable to projects and recently developed products for which a segment has not yet been determined. The associated direct and indirect costs are presented in the category of Corporate and other, along with other corporate costs as described below. Our Chief Executive Officer has been identified as the CODM, as he assesses the performance of the segments and decides how to allocate resources to the segments. Income from continuing operations is the measure of profit and loss that our CODM uses to assess performance and make decisions. As assets are not a measure used to assess the performance of the company by the CODM, asset information is not tracked or compiled by segment and is not available to be reported in our disclosures. Income from continuing operations represents the net sales less the cost of sales and direct operating expenses incurred within the operating segments as well as allocated expenses such as shared sales and manufacturing costs. We do not allocate to our operating segments certain operating expenses which we manage separately at the corporate level. These unallocated costs include stock-based compensation and corporate functions (certain research and development, management, finance, legal and human resources) and are included in the results below under Corporate and other in the reconciliation of operating results. Management does not consider unallocated Corporate and other costs in its measurement of segment performance. The following table provides net sales and income from continuing operations for our operating segments and a reconciliation of our total income from continuing operations to income from continuing operations before income taxes (in thousands): Three Months Ended Nine Months Ended June 29, 2019 June 30, 2018 June 29, 2019 June 30, 2018 Net sales: OEM Laser Sources $ 206,285 $ 315,538 $ 680,230 $ 958,333 Industrial Lasers &amp; Systems 132,885 166,804 414,946 482,692 Total net sales $ 339,170 $ 482,342 $ 1,095,176 $ 1,441,025 Income (loss) from continuing operations: OEM Laser Sources $ 48,310 $ 117,948 $ 190,003 $ 362,785 Industrial Lasers &amp; Systems (39,569 ) (292 ) (70,925 ) 2,093 Corporate and other (15,898 ) (17,132 ) (44,557 ) (54,370 ) Total income (loss) from continuing operations (7,157 ) 100,524 74,521 310,508 Total other income (expense), net (4,386 ) (7,625 ) (17,789 ) (25,635 ) Income (loss) from continuing operations before income taxes $ (11,543 ) $ 92,899 $ 56,732 $ 284,873 Geographic Information Our foreign operations consist primarily of manufacturing facilities and sales offices in Europe and Asia-Pacific. Sales, marketing and customer service activities are conducted through sales subsidiaries throughout the world. Geographic sales information for the three and nine months ended June 29, 2019 and June 30, 2018 is based on the location of the end customer. Sales to unaffiliated customers are as follows (in thousands): Three Months ended Nine Months Ended SALES June 29, 2019 June 30, 2018 June 29, 2019 June 30, 2018 United States $ 82,913 $ 78,557 $ 251,122 $ 227,409 Foreign countries: South Korea 65,717 172,938 235,443 509,784 China 57,519 58,865 152,134 183,188 Europe, other 38,296 42,580 114,973 131,329 Japan 24,119 36,581 114,702 123,906 Germany 32,809 45,062 111,646 124,983 Asia-Pacific, other 23,954 32,824 72,100 95,871 Rest of World 13,843 14,935 43,056 44,555 Total foreign countries sales 256,257 403,785 844,054 1,213,616 Total sales $ 339,170 $ 482,342 $ 1,095,176 $ 1,441,025 Major Customers We had one customer during the three and nine months ended June 29, 2019 that accounted for 15.6% and 15.9% of net sales, respectively. The same customer accounted for 30.0% and 28.4% of net sales for the three and nine months ended June 30, 2018 , respectively. This customer purchased primarily from our OLS segment. We had one customer that accounted for 25.2% and 16.4% of accounts receivable at June 29, 2019 and September 29, 2018 , respectively. We had another customer that accounted for 16.7% of accounts receivable at September 29, 2018 . These customers purchased primarily from our OLS segment.