CASTEM Company Overview

Thank you very much for your continued patronage. We apologize for the inconvenience, but we will be closed during the following period. 【Closure Period】 From Wednesday, April 29, 2026, to Wednesday, May 6, 2026. Inquiries received during the closure period will be addressed sequentially starting from Thursday, May 7, 2026. We apologize for any inconvenience this may cause during this period and appreciate your understanding. *Orders placed on various online shopping sites will still be accepted during the closure period. *Shipping of products and responses to inquiries will begin after Thursday, May 7, 2026.

The "Monozukuri World Nagoya" will be held at Port Messe Nagoya from April 8 (Wednesday) to April 10 (Friday), 2026, where we will exhibit simultaneously at the "Mechanical Components Technology Exhibition" and the "Next Generation 3D Printer Exhibition." "We have high cutting costs for complex shapes," and "We cannot decide on mass production methods after prototyping"... We will showcase optimal solutions for customers troubled by prototyping and mass production of metal parts. If you are struggling with selecting methods for mass-produced items or reducing costs, please visit the "Mechanical Components Technology Exhibition." If you are having difficulties with single-item or one-off production, please come to the "Next Generation 3D Printer Exhibition." We sincerely look forward to your visit. 【Exhibition Overview】 ■ Event Name: Monozukuri World Nagoya ■ Dates: April 8 (Wednesday) to April 10 (Friday), 2026, 10:00 AM to 5:00 PM ■ Venue: Port Messe Nagoya (2-2 Kinjo-futo, Minato Ward, Nagoya) ■ Exhibition Content and Booth Numbers: Lost wax precision casting, MIM (casting demonstrations included) ➔ Mechanical Components Technology Exhibition… Hall 1, Booth 7-9 Mold-less casting digital cast ➔ Next Generation 3D Printer Exhibition… Hall 1, Booth 12-10

Castem Co., Ltd. and Castem Global Group's Castem Vietnam held the completion ceremony for the newly established factory in Quang Ninh Province, Northern Vietnam, in January 2026. This is the first expansion into Vietnam for our group, and this factory will be our seventh overseas production base. Following the planned second phase of construction, it is expected to become the largest production base in the group in the future. The factory will manufacture lost-wax precision casting parts used in semiconductors, precision machinery, and construction machinery. We chose Vietnam, where economic growth is anticipated, as a new production base for our main business of lost-wax precision casting. Currently, we are advancing with prototypes and plan to start mass production by the end of May 2026. Once the second phase of construction is completed by the end of 2028, we will ultimately be able to produce one million units per month (with a product shipment weight of approximately 120 tons/month). On the day of the ceremony, about 100 participants, including business partners and local stakeholders, attended and toured the various processes such as mold making, casting, and machining. Although we are starting with a compact system in terms of equipment and personnel, we will continue to take on challenges and advance our business to a new dimension.