日本是否会反制断供光刻胶？从产业格局与中日博弈看隐形限制的真相

Core Viewpoint - The article discusses Japan's monopoly in the semiconductor materials sector, particularly in photoresists, and the implications of recent export control measures by China on Japanese suppliers and the broader semiconductor industry [3][4][5]. Group 1: Japan's Monopoly in Semiconductor Materials - Japan holds a dominant position in the global semiconductor materials market, especially in photoresists, with 14 out of 19 key semiconductor manufacturing materials having over 50% global market share [3][10]. - The global semiconductor photoresist market is highly concentrated, with Japanese companies like JSR, Shin-Etsu Chemical, and Tokyo Ohka Kogyo controlling 95% of the supply [7][9]. - High-end photoresists, such as EUV photoresists, are completely monopolized by three Japanese companies, while ArF and KrF photoresists also have over 85% market share held by Japanese firms [3][9]. Group 2: Potential Supply Restrictions - The article raises concerns about whether Japan will tighten its supply of critical semiconductor materials, such as photoresists, to China in response to China's export controls [4][11]. - Japan's ability to impose supply restrictions is complicated by its significant reliance on the Chinese market, which accounted for 38.8% of Japan's semiconductor equipment exports in 2021 [13]. - The interdependence between Japan and China in the semiconductor sector suggests that a complete supply halt would be detrimental to both parties, as it would harm Japanese companies' revenues and market positions [13][14]. Group 3: Emerging Trends in Supply Chain Dynamics - The article highlights the emergence of "de facto supply restrictions," where Japanese companies may delay approvals for exports to China, creating invisible barriers to trade [16][17]. - Approval rates for exports of photoresists to China have decreased from 89% to 76%, with longer approval times indicating a tightening of supply [17]. - Japanese firms may prioritize supply to international clients over Chinese companies, leading to reduced quantities and increased prices for Chinese semiconductor manufacturers [18][19]. Group 4: China's Response and Opportunities - The pressures from Japan's supply restrictions are prompting Chinese semiconductor manufacturers to accelerate the development and validation of domestic photoresist products [20][22]. - Chinese companies have made significant progress in developing mid-to-high-end photoresists, with several firms achieving stable sales and customer validation for their products [22]. - The article suggests that the current situation presents a unique opportunity for China to enhance its semiconductor supply chain resilience and reduce reliance on Japanese imports [20][24].