Rising oil prices and a weak Korean won double whammy! South Korea's June CPI rises to its highest level in two and a half years, increasing the likelihood of a rate hike by the central bank in July.

South Korea's inflation rate in June rose to its fastest level since December 2023, further strengthening market expectations of an interest rate hike by the Bank of Korea as early as the policy meeting on July 16. Data released on Thursday showed that South Korea's Consumer Price Index (CPI) in June rose by 3.2% year-on-year, higher than May's 3.1% and in line with economists' median forecasts; the core inflation rate, which excludes volatile items such as food and energy, remained at 2.5%, indicating that potential price pressures are still resilient. South Korea's June CPI hits highest level in two and a half years South Korea's accelerated inflation is mainly driven by high international oil prices, which in turn are related to ongoing turmoil in the Middle East. Meanwhile, the weakening South Korean won has further pushed up imported raw material costs. Policymakers believe that the persistent inflation, economic growth resilience, weak South Korean won, and rapid increase in housing prices are increasingly supporting the tightening of monetary policy. Bank of Korea Governor Lee Ju-yeol has also warned multiple times that the strong semiconductor exports have begun to transmit inflation into broader areas such as consumption, wages, and investment, increasing the risk of inflation solidifying. The latest minutes of the Bank of Korea's monetary policy meeting showed that after two members voted in May to immediately hike rates at the policy meeting, the focus of the committee members has now shifted from "whether to hike" to "when to hike." In addition, in a survey conducted in May, about two-thirds of surveyed economists expected the Bank of Korea to hike rates at least once before the end of September. Furthermore, the Bank of Korea further reinforced its hawkish stance last week, noting that rising housing prices, high household debt, and increased leverage investments are posing financial imbalance risks, indicating the need for further rate hikes at the appropriate time. The Bank of Korea's semi-annual Financial Stability Report released last Wednesday stated that despite increased uncertainties domestically and internationally, the country's financial system overall has remained stable due to strengthened economic growth, resilient financial institutions, and strong external payment conditions. However, the report warned that financial imbalances could further accumulate as housing prices in Seoul and surrounding areas accelerate and investors increasingly rely on leveraged asset purchases, indicating rising credit risks among vulnerable borrowers and businesses. The report stated: "While the Bank of Korea has kept its key interest rate at 2.5% since the second half of 2025, considering inflation pressures, economic conditions, and financial stability risks, it is deemed necessary to increase the policy rate at an appropriate time." Jeeho Yoon, an economist at BNP Paribas in Paris, stated that with recent declines in fuel prices following government measures to limit fuel prices, and reductions in fuel surcharges driven by falling aviation fuel prices, as well as a reversal in the increase of tour prices, there is room for easing overall inflation pressures. However, he added: "Even if future inflation trends appear to stabilize, as long as the Bank of Korea still sees current inflation levels as high, its policy stance may remain hawkish." He also noted that core inflation is likely more stubborn than overall inflation, as core inflation typically lags behind overall price trends, and recent wage negotiation results will be a key factor in determining future inflation trends. Economist Hyosung Kwon stated: "This CPI report further strengthens the case for the Bank of Korea to initiate monetary tightening before high inflation solidifies. We expect the Bank of Korea to raise rates by 25 basis points on July 16, followed by another 25 basis points in October, and continue to hike twice next year, raising the policy rate from the current 2.5% to 3.5% in the first half of 2027." While the current inflation rebound still mainly reflects high energy costs, policymakers will also closely monitor whether the demand brought about by the semiconductor boom is spreading more widely to service prices and inflation expectations. Data showed that South Korea's exports in June continued to show strong growth. After adjusting for working day differences, exports in June increased by 59.5% year-on-year, while imports increased by 30.1%, resulting in a trade surplus of $36.1 billion. Unadjusted exports increased by 70.9% year-on-year, higher than the revised 53.4% in May. The semiconductor industry led export growth once again, with chip shipments increasing by 199.5% year-on-year to reach $44.8 billion. Exports of computer-related products and petroleum products also increased by 308.8% and 49.8% respectively. South Korea's June export data highlights the durability of the semiconductor industry boom that supports economic growth, further strengthening expectations that the expansion of South Korea's AI-driven economy remains intact, despite ongoing geopolitical uncertainties.