Samsung's bread and butter, components (eg, dram and displays) business are still made in South Korea. The company also recently announced that they are investing $100B over next 10 years in their foundry business, which is likely to be all in South Korea.

My Samsung phone says Made in Korea on the back. I assume that means it was assembled there and mostly uses Chinese components on the inside like everyone else. It is almost impossible to avoid China if you are in the manufacturing business.

I highly doubt your Samsung phone contains many Chinese parts. The camera, screen, chip come from Japan, SK, and Taiwan. Maybe the speakers were made in China.