Japan Election 2026: Takaichi’s Victory, China Tensions & Deep-Sea Minerals

The recent landslide victory of Japan’s Liberal Democratic Party (LDP), led by Prime Minister Sanae Takaichi, in the February 8th, 2026 Lower House election was largely anticipated according to pre-election polling. However, the scale of the win – securing a two-thirds majority – has surprised observers, granting Takaichi’s government considerable power to implement its agenda, even overriding dissent from the Upper House where the coalition is in the minority. A key, and somewhat obscured, element of this victory was the strategic leveraging of a deep-sea rare-earth exploration project, effectively ‘hijacked’ for electoral purposes.

A Shift in Japan’s China Policy

Takaichi assumed office on October 21, 2025, initially engaging with Chinese President Xi Jinping at the APEC Economic Leaders’ Meeting in South Korea later that month. However, bilateral relations quickly deteriorated. Several events contributed to this cooling, including the dissolution of the 26-year alliance between the LDP and Komeito on October 10th, 2025 as reported by the Center for Strategic and International Studies, Takaichi’s November 7th remarks on Taiwan and collective self-defense, and China’s subsequent imposition of export restrictions on dual-use goods, including critical minerals, announced on January 6th, 2026 as detailed by Reuters.

These export restrictions echoed the unofficial embargo China placed on rare earth elements to Japan in September 2010, following a dispute over the Diaoyu/Senkaku Islands according to CSIS analysis. However, Takaichi, influenced by her mentor Shinzo Abe’s focus on the ‘China threat,’ recognized the dangers of over-reliance on Chinese critical mineral supplies. Finance Minister Satsuki Katayama publicly called for preventing China from weaponizing critical minerals as reported by Nikkei Asia, setting the stage for a more assertive stance.

Minamitori Island and the Deep-Sea Exploration

On January 19th, 2026, Takaichi announced a snap election for February 8th. Freed from the moderating influence of Komeito, which traditionally favored continued engagement with China according to the Komeito party website, she adopted a more hawkish approach. Positioning herself as Japan’s first female prime minister and drawing comparisons to Margaret Thatcher as noted by the BBC, Takaichi refused to retract her statements regarding a potential Taiwan contingency, despite pressure from Beijing as reported in the Strait Times.

A central theme of her campaign became economic and mineral security in the face of the perceived China threat. This led to a heightened focus on Minamitori Island (also known as Marcus Island), a sparsely populated island approximately 1,850 km southeast of Tokyo. In the weeks leading up to the election, the government prominently announced the results of exploratory drilling conducted by the Chikyū, Japan’s deep-sea drilling vessel. On February 2nd, the Cabinet Office and the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) announced the retrieval of 350 metric tonnes of rare-earth-rich mud from a depth of 6,000 meters. Estimates suggest the seabed around Minamitori Island holds over 16 million tonnes of rare earth reserves, potentially enough to meet global demand for over 700 years according to Nikkei Asia, making it potentially the world’s third-largest deposit.

Commercial Viability and Environmental Concerns

While presented as a breakthrough, the deep-sea mining project is not without its challenges. Experts interviewed in Japan caution that commercial viability remains distant. Currently, Chikyū can extract approximately 350 tonnes of REY-rich mud per day, but commercial operations would require a rate of at least 3,500 tonnes per day. The location of potential refinery plants remains undecided due to the island’s remoteness – the Chikyū took five days to reach Minamitori Island from Shimizu Port.

Crucially, the environmental impact of deep-sea mining remains largely unknown. While Japan amended its Mining Act in 2022 to include rare-earth minerals as detailed in a report by the Japan Institute of International Affairs, the Act does not address environmental protection. Japan’s Environmental Impact Assessment (EIA) Act does not currently cover seabed resources.

A Constructed Narrative for Electoral Gain

According to sources, the Takaichi administration arguably exaggerated the prospects of deep-sea mining to bolster her election campaign, creating the impression of a solution to China’s coercive tactics. The government actively framed the Chikyū exploration as a “world first” and a step towards establishing resilient supply chains, implicitly contrasting this with dependence on China. Takaichi herself highlighted the success on X (formerly Twitter) in a post on February 2nd, referring to it as a “first step toward industrialisation of domestically produced rare earth in Japan.”

Scientists in Japan suggest that full-scale extraction within Japan’s Exclusive Economic Zone (EEZ) is at least a decade away. The narrative of a major breakthrough was, strategically constructed to support Takaichi’s campaign and position her as a capable leader in the face of the China challenge.

Implications and Future Developments

Following the election, the detailed plans for deep-sea mining exploitation will likely be left to technical experts. However, the government remains committed to diversifying critical mineral supply chains, with Minamitori Island’s EEZ identified as a key area for development. This policy could potentially intensify conflict with China around the island, particularly given the June 2025 incident involving a Chinese aircraft carrier entering the EEZ as reported by the Guardian. The island, despite its small size, warrants close attention in the coming years.

The immediate next steps involve further feasibility studies and environmental impact assessments. Japan will need to develop a robust regulatory framework for deep-sea mining, addressing both economic viability and environmental sustainability. The success of this endeavor will depend not only on technological advancements but also on navigating the complex geopolitical landscape and managing the potential for increased tensions with China. The long-term implications extend beyond Japan, potentially influencing global supply chains and setting a precedent for deep-sea resource extraction elsewhere.