Iran War & China's Rare Earth Embargo Drive KOSPI's Record 452-Point Crash

Investment Implications

War Pulls the Trigger — No Chinese Rare Earths, No $10 Trillion Defense Machine

A week before the US launched a major military operation against Iran, China had already banned rare earth exports to 20 Japanese defense firms. These are not two separate news stories — they're two sides of the same structural vulnerability: advanced US and allied defense systems depend on rare earth supply chains where China controls over 90% of global processing capacity.

The US plans to pour roughly $10 trillion into fighter jets, missile defense, warships, and drone production lines over the next five years — and all of that defense infrastructure depends on rare earth metal refining that China dominates (90%+ of global processing). The Pentagon's 2022 discovery that Chinese rare earths were used in the lubricant pump magnets of the F-35, which triggered a temporary delivery halt, was just the preview. US defense systems will be legally prohibited from using Chinese-origin rare earth magnet materials starting in 2027, but North America's first rare earth oxide-to-magnet-grade metal conversion facility (REalloys, Ohio) has only just begun operating. Alternative supply chains remain in their infancy.

Yesterday's takeaway was a structural diagnosis: the AI-defense-EV triangle is already impossible without Chinese rare earths. Today's distinction is that this vulnerability is materializing in the midst of a live war. As the Iran conflict accelerates defense consumption, China is piloting rare earth leverage as a sanctions tool — Japan is the first test case. Given existing trends, the structure that resource geopolitics has built — concentrating critical mineral supply chains around China (90%+ of rare earth processing) — cannot be unwound quickly.

For Korean investors, the directional signals point toward non-Chinese rare earth and critical mineral development, rare earth substitute materials research and separation and refining processes, and defense supply chain restructuring beneficiaries responding to the 2027 FAR amendment. India-Japan joint rare earth exploration talks are already underway, and Korea's nuclear and defense MOU with the Philippines fits the same pattern.

Key Developments

Technology

US Defense & Aerospace $10 Trillion 5-Year Pipeline Entirely Dependent on China's Rare Earth Refining

US defense spending runs at $900 billion annually, with civilian aerospace and defense generating $1 trillion in annual revenue. The entirety of projected five-year defense spending is tied to rare earth processing where China dominates (90%+ of global refining). A 2027 Federal Acquisition Regulation (FAR) amendment will legally prohibit the use of Chinese-origin rare earth magnet materials, but alternative supply chains are not yet in place. (Source: OilPrice)

China Bans 7 Rare Earth Elements to 20 Japanese Defense Firms

China banned exports of seven rare earth elements and other dual-use items to 20 Japanese companies with military supply ties — the latest escalation in Sino-Japanese tensions. China's weaponization of critical minerals is accelerating supply chain restructuring across East Asia. India and Japan are in talks for joint rare earth exploration outside China. (Source: Economic Times India)

AI Coding Tool Cursor Surpasses $2 Billion Annualized Revenue — Doubles in Three Months

AI coding assistant Cursor's annualized run rate has surpassed $2 billion, doubling over the past three months. Approximately 60% of revenue comes from large enterprise clients as the business model shifts from individual developers to company-wide adoption. The numbers signal rapid expansion in the AI software development tools market. (Source: TechCrunch)

Hyundai Motor Group Announces KRW 9 Trillion Innovation Hub in Saemangeum — AI, Hydrogen, and Robotics

Hyundai Motor Group signed an MOU with the Korean government and North Jeolla Province to build an innovation hub in the Saemangeum area worth approximately KRW 9 trillion (roughly $6.2 billion). The investment breaks down as KRW 5.8 trillion for AI data center infrastructure (up to 50,000 GPUs), KRW 1.3 trillion for solar, KRW 1 trillion for a PEM hydrogen electrolyzer plant, and KRW 400 billion for a robotics cluster. The AI data center and solar installations are scheduled to break ground in 2027 and complete in 2039. (Source: RenewEconomy)

US Military Deploys Low-Cost Suicide Drone LUCAS ($35K/Unit) in Iran — Combat Debut

The US military deployed the LUCAS (Low-Cost Uncrewed Combat Attack System) suicide drone in the Iran operation. Manufactured by SpektreWorks in Arizona, each unit costs approximately $35,000 — far less than the MQ-9 Reaper ($20–40 million). This marks the drone's combat debut just eight months after the Pentagon's public announcement, as part of a $1 billion drone dominance program. (Source: Economic Times India)

UK Ministry of Defence Signs £240 Million Deal with Palantir — NATO Integrates AI Platform Maven

The UK Ministry of Defence signed a £240 million (approximately $310 million) contract with Palantir. NATO is integrating Palantir's AI-based defense platform Maven to analyze data ranging from satellite imagery to intelligence reports. The move underscores how AI integration is reshaping the global defense paradigm. (Source: BBC)

Economy

Brent Crude Surges 8.36% to $84 — Prolonged Iran Operation Signals Supply Risk, Analysts See $100–120 if Hormuz Closes

Brent crude surged 8.36% to $84.24 per barrel, while WTI rose 8% to $76.93. Supply risks turned real as President Trump signaled a prolonged "Operation Epic Fury" and the IRGC threatened to close the Strait of Hormuz. Analysts project prices could reach $100–120 per barrel if the strait is blocked for more than three weeks. (Source: OilPrice)

Korea's Energy Exposure: 70.7% of Crude and 20.4% of LNG from the Middle East — 208-Day Stockpile Provides Near-Term Buffer

South Korea sources 70.7% of its crude oil imports and 20.4% of its LNG imports from the Middle East, all transiting the Strait of Hormuz. The government announced a combined 208-day stockpile comprising 76.4 million barrels in government reserves and 73.8 million barrels in private reserves. Authorities say they will pursue supply diversification beyond the Middle East in an emergency. (Source: Yonhap News)

War Risk Insurance Premiums Quadruple — 10% of Global Container Fleet Caught in Port Congestion

Maritime war risk insurance premiums have jumped from 0.25–0.5% to 1%, significantly raising shipping costs for cargo vessels operating in the Gulf. The CEO of container shipping company ONE warned that approximately 10% of the global container fleet is caught in widespread port congestion, with cargo backlogs at European and Asian ports potentially starting soon. (Source: Al Jazeera)

2,000 Lawsuits, $130 Billion in Tariff Refund Claims — US Trade Court Faces Record Filing Surge

Following the Supreme Court's ruling that Trump tariffs were unconstitutional (February 20), approximately 2,000 lawsuits seeking over $130 billion in refunds have been filed with the Court of International Trade — compared to just 252 new cases filed in all of 2024. More than 300,000 companies, from multinationals like FedEx and L'Oréal to small-scale importers, are claiming refunds. (Source: Economic Times India)

KOSPI Plunges 7.24% to 5,791 — KRW/USD Spikes 26 Won to 1,466 on Middle East Conflict

South Korea's benchmark KOSPI index plunged 452 points (7.24%) to close at 5,791.91, its lowest level since February 20. The KRW/USD exchange rate jumped 26.4 won to 1,466.1, marking a sharp depreciation in the Korean won. Deteriorating investor sentiment driven by the escalating Middle East conflict was the primary driver. (Source: Yonhap News)

Politics

Iran Strikes US Base in Kuwait, Fires Missiles at 5 Gulf Nations — 6 US Troops Killed

Iran launched missile strikes on a US military base in Kuwait, killing six US soldiers — the first official US fatalities since the US-Israel war against Iran began. Iran also launched missile and drone attacks against five Gulf states — Bahrain, UAE, Saudi Arabia, Oman, and Qatar — and the US Embassy in Riyadh. (Source: BBC)

40% of US Navy Operational Fleet Now in the Middle East — Indo-Pacific Allies Fear Deterrence Gap Against China

Approximately 40% of US Navy operational vessels are currently deployed in the Middle East. Asian allies are worried about the resulting erosion of Indo-Pacific deterrence — US reconnaissance flights over the South China Sea fell 30% month-over-month in February, from 102 to 72 sorties. Given existing trends, declining confidence in US security commitments is structurally pressuring allies to strengthen their own defense capabilities. (Source: Economic Times India, SCMP)

Korea and Philippines Sign 9 MOUs on AI, Defense, and Nuclear — Including Revised Defense Procurement Agreement

President Lee Jae-myung and Philippine President Marcos signed nine MOUs covering AI, defense industry, transnational crime, and cultural exchange. A revised defense procurement agreement includes expanded Korean corporate access to Philippine defense contracts and provisions for weapons maintenance and logistics support. Seven additional MOUs covering shipbuilding, nuclear energy, food, and medical equipment are also planned. (Source: Yonhap News)

Social

US Burns $779 Million in First 24 Hours of Iran Operation — THAAD Inventory Down 25%

The US spent approximately $779 million in the first 24 hours of the Iran operation, with an estimated additional $630 million invested in pre-positioned forces. During the June 2025 12-day Iran-Israel war, the US fired more than 150 THAAD interceptor missiles, depleting roughly 25% of total THAAD inventory. The gap between weapons consumption and replenishment capacity is emerging as a strategic vulnerability. (Source: Al Jazeera)