Hi Hiost Co., Ltd.

Commence contract manufacturing of precision grinding and production of engine parts.

Begin research and development of linear ball bush.

To expand business, establish and relocate a factory in Kawagoe City, Saitama Prefecture. : Successfully developed a unique oil-containing sintered alloy solid-type holder through innovative thinking, and commenced manufacturing of groundbreaking linear ball bush.

Signed an OEM supply agreement with NSK Ltd. for linear ball bush and began sales under the NSK brand. (Contract terminated in January 1984 when our patent expired.)

With expansion of business scope, established and relocated a factory to the industrial park in Hoshinodai, Kawagoe City, Saitama Prefecture.

Developing an angular way for direct-drive guidance mechanisms for machine tools and industrial machinery.

At the 23rd Ota Ward SME New Product and New Technology Contest, 'Miniature Ball Screw Spline (BSSP)' won the 'Excellent Award'.

Added a soldered-type inlo flange and center flange to the lineup of the linear ball bush series.

Launched sales of the consumer linear ball bush 'UTB (Utility Track Ball)'.

Listed on the Tokyo Stock Exchange JASDAQ Standard following the integration of the physical trading markets of the Tokyo Stock Exchange and Osaka Stock Exchange.

Introduced the 'Hybrid Flange Linear Ball Bush (JFK series)', which uses high-strength plastic to balance assembly ease and cost.

Our technology was adopted in the new movable weight system 'LBO (Linear Bearing Oscillator)' jointly developed with Megabus Corporation.

Added a slim type to the UTB series lineup.

The 'Ultra-precision single-axis stage and ultra-precision XYθ stage equipped with a Kusa-gi type reduction mechanism' received the Reiwa 3 Award.

We created a poster detailing our efforts toward the Sustainable Development Goals (SDGs) to commemorate our 60th anniversary.

Updated the report on corporate governance.

An analyst report on our company was distributed by FISCO Co., Ltd., which conducts corporate research and analysis.

Added a notice of shareholder benefit shipment and a request to shareholders with partially missing deliveries.

We sponsored the 'Akita Prefecture Kanto Festival' held from Sunday, August 3, 2025, to Wednesday, August 6, 2025.

Certified as a health management practice company in Saitama Prefecture.

Held a study session on the Small and Medium Enterprise Subcontracting Transaction Fairness Act (Tori-teki-hou), which became law and will take effect from January 1, 2026.