The South Korean stock market closed significantly higher, setting a new record closing level with a gain of 2.25%. The benchmark KOSPI index advanced by 199.60 points, or 2.25%, finishing the session at 9,063.84 points, marking its highest-ever closing figure.

Samsung Electronics shares rose by 4.62%, while SK Hynix surged 6.51%. These two chipmakers, which together account for over 50% of the benchmark index's total market capitalization, both achieved record closing highs.

SK Hynix announced it has sent samples of its latest high-bandwidth memory (HBM) chips to key customers. The South Korean semiconductor firm is aiming to strengthen its position in the rapidly expanding market for artificial intelligence chips.

In a recent interview, Apple Inc.'s CEO Tim Cook indicated the company plans to raise prices on its products to offset increasing costs for memory and storage chips.

South Korea's financial market regulator recently issued a warning to investors regarding leveraged investment products tied to single stocks. These products have been introduced during a global rally led by domestic chipmakers.

Most other major index constituents declined. Battery manufacturer LG Energy Solution fell by 3.85%. Hyundai Motor and its affiliate Kia Corp. dropped 2.75% and 4.51%, respectively.

Out of a total of 917 traded stocks, 109 advanced while 791 declined.