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Segment Information and Foreign Operations (Tables)
9 Months Ended
Sep. 30, 2023
Segment Information and Foreign Operations  
Revenues reported by product type

The following table represents revenue amounts (in thousands) by product type:

Three Months Ended

Nine Months Ended

September 30, 

September 30, 

    

2023

    

2022

    

2023

    

2022

 

 

Product Type:

Substrates

$

10,385

$

26,861

$

34,901

$

90,300

Raw Materials and Other

 

6,981

 

8,322

 

20,465

 

24,023

Total

$

17,366

$

35,183

$

55,366

$

114,323

Revenue reported for products shipped to customers in the corresponding geographic region

The following table represents revenue amounts (in thousands) reported for products shipped to customers in the corresponding geographic region:

Three Months Ended

Nine Months Ended

September 30, 

September 30, 

    

2023

    

2022

    

2023

    

2022

 

 

Geographical region:

China

$

10,307

$

12,314

$

28,698

$

48,239

Taiwan

2,491

7,816

6,369

21,719

Japan

 

558

 

2,671

 

3,489

 

8,196

Asia Pacific (excluding China, Taiwan and Japan)

894

765

2,722

3,183

Europe (primarily Germany)

2,407

4,989

8,992

16,682

North America (primarily the United States)

 

709

 

6,628

5,096

16,304

Total

$

17,366

$

35,183

$

55,366

$

114,323

Long-lived assets by geographic region

Long-lived assets consist primarily of property, plant and equipment and operating lease right-of-use assets, and are attributed to the geographic location in which they are located. Long-lived assets, net of depreciation, by geographic region were as follows (in thousands):

As of

September 30, 

December 31, 

    

2023

    

2022

 

Long-lived assets by geographic region, net of depreciation:

North America

$

1,698

$

346

China

 

159,953

 

162,432

$

161,651

$

162,778