DAISHINKU CORP.

The Arkh Series adopts photolithography and WLP (Wafer Level Package) technology, achieving 5-7x output per unit area compared to conventional 1-by-1 manufacturing through wafer-level batch processing. It eliminates the need for ceramic packages and conductive adhesives, reducing material costs, and further cost reductions are being pursued through the adoption of larger 6-inch wafers. The company has established a proprietary manufacturing process that is difficult for competitors to replicate in a short period.

The company develops and manufactures a wide variety of products in-house, including Crystal Units, Crystal Oscillators (SPXO, TCXO, OCXO), and crystal filters, and holds the No.1 share in the crystal filter field. The Arkh Series product lineup has been expanded to include crystal units (Arkh.3G, Arkh.6G), oscillators (Arkh.2G), and high-frequency differential output oscillators (supporting 625MHz), promoting customer lock-in through single-source supply.

With a history of over 60 years since its founding in 1963, the company operates multiple domestic sites in addition to manufacturing subsidiaries in Taiwan, China, Indonesia, and Thailand, and sales subsidiaries in the United States, Germany, Hong Kong, Singapore, and other locations. In FY2026 (ending March 2026), overseas sales amounted to ¥34,462 million, accounting for approximately 87% of the total, reflecting a global customer base and supply system that has been built up. In October 2025, a new site was also established in Poland, strengthening the company's expansion in Europe.

Rolling out the world's thinnest Arkh.3G (adopting WLP technology, targeting IC integration) and Arkh.2G (a crystal oscillator compatible with conventional products). Wafer-level batch processing achieves 5 to 7 times the output compared to conventional methods, establishing overwhelming cost advantage and productivity. No new factory construction is required, also suppressing CO2 emissions.

Positioning competitors as partners, the company promotes industry standardization by supplying Arkh Series crystal units as the "embedded crystal unit" within crystal oscillators. Rather than limiting supply to a single company, the aim is to spread adoption across the entire industry, expanding market size and creating stable demand.

Capturing expanding demand for differential output oscillators driven by the increase in AI data centers, optical transceivers, and the spread of edge AI, as well as demand for thin, lightweight crystal devices for wearables such as smart glasses. Steady growth in the automotive sector (ADAS, electrification) also continues to serve as a growth driver. External tailwinds in the market environment are also present.

Advancing DX promotion and the development of fully automated production through the introduction of automated transport robots, realizing a "factory of the future" suited to an era of declining working population. Continuing to enlarge crystal wafer sizes and pursuing continuous technological innovation to establish an unmatched competitive advantage, achieving both improved profitability and reduced environmental impact.

The Arkh Series uses little heavy oil and no helium, giving it product characteristics resilient to geopolitical risks such as heightened tensions in the Middle East. The increase in raw materials and stored goods (from ¥6,492 million in the previous period to ¥11,980 million in the current period) is also positioned as part of strengthening the stable supply system, though balancing this against cash flow deterioration from the rapid rise in inventory remains a challenge.