What does South Korea import most?

I'm curious, could you elaborate on the topic of South Korea's imports? Specifically, what goods does South Korea import the most? Are these imports primarily raw materials, finished products, or something else? Furthermore, do these imports play a significant role in South Korea's economy? And are there any specific trends or patterns in the types of goods being imported that are worth noting? Thank you for your insights into this intriguing aspect of South Korea's trade.