JA
PROJECT
In today's manufacturing industry, ensuring cost competitiveness, consistent quality, reliable delivery, and a stable supply of precision metal parts has become more important than ever. As global supply chains continue to face challenges such as geopolitical risks, natural disasters, and fluctuations in raw material prices, manufacturers increasingly seek production partners with diversified manufacturing locations.
CASTEM specializes in investment casting and Metal Injection Molding (MIM) for the production of high-precision metal components. Today, approximately 90% of our total shipments are manufactured at our overseas production facilities. In addition to manufacturing plants in the Philippines, Thailand, Colombia, and a technology laboratory in the United States, CASTEM began operations at its new Vietnam manufacturing facility in 2026.
This article introduces CASTEM's global manufacturing network, quality management system, collaboration between our overseas plants and headquarters in Japan, and the history behind our international expansion.
CASTEM's Global Manufacturing Network
CASTEM currently operates manufacturing facilities in the Philippines, Thailand, Colombia, and Vietnam, along with a technology laboratory in California, USA.
Our first overseas production facility was established in the Philippines in 1995. At that time, it was uncommon for Japanese small and medium-sized manufacturers to establish local subsidiaries and manufacturing facilities in the Philippines. Through continuous investment and local talent development, the facility has steadily expanded and has become the largest investment casting production site within the CASTEM Group.
By operating manufacturing sites across multiple countries, CASTEM reduces dependence on any single region while minimizing supply chain risks. This diversified production network enables us to provide customers worldwide with a stable and reliable supply of precision metal components.
Learn more about the CASTEM Global Group.
Learn more about our Vietnam factory
Manufacturing Capacity That Supports Stable Supply
Leveraging the strengths of investment casting and Metal Injection Molding (MIM), we manufacture:
・Complex metal components
・Parts that are costly to machine conventionally
・Components requiring reduced machining and assembly processes
・High-volume precision metal parts
By combining high-volume production at our overseas facilities with engineering and quality support from our headquarters in Japan, CASTEM supports customers from prototype development through full-scale mass production.
Quality Assurance Based on International ISO Certifications
Our production sites in the Philippines and Thailand obtained ISO 9001 certification in 2015, while our Thailand facilities also achieved ISO 14001 certification in the same year.
Furthermore, CASTEM Thailand Factory No. 2, our dedicated MIM production facility, is certified to ISO 13485, the international quality management standard for medical device manufacturing, equivalent to our MIM facility in Japan.
These internationally recognized certifications ensure that our overseas facilities maintain the same rigorous quality standards expected by customers worldwide. Close coordination between our domestic and international teams enables us to consistently manufacture precision metal parts that meet demanding quality requirements.
Integrated Production and Quality Management Between Japan and Overseas Facilities
The headquarters also performs final inspections of products manufactured overseas before shipment to customers in Japan.
Our Production Management Department works closely with each overseas factory to coordinate production schedules, allocate manufacturing capacity, and ensure on-time delivery.
The combination of large-scale overseas manufacturing and Japanese engineering expertise forms the foundation of CASTEM's global manufacturing system.
Improving Quality Through Technical Training and Knowledge Sharing
Engineers from our factories in the Philippines and Thailand regularly participate in several months of technical training at our headquarters in Japan. They receive hands-on instruction in mold manufacturing, investment casting, machining, and quality management before bringing that knowledge back to their home facilities.
In addition, CASTEM dispatches engineers from Japan to overseas production sites through our "Bridge Engineer Training Program." By working directly alongside local teams, they identify operational challenges, implement improvements, and strengthen collaboration throughout the organization.
These continuous technical exchanges help maintain consistent manufacturing standards and contribute to higher product quality and a more resilient global supply chain.
Your Global Manufacturing Partner for Precision Metal Parts
With nearly 30 years of international manufacturing experience, CASTEM continues to support customers around the world through its global production network and advanced precision manufacturing technologies.
Whether you are looking to:
・Mass-produce precision metal parts
・Transfer production overseas
・Diversify your supply chain
・Reduce manufacturing costs
・Improve production efficiency
・Find a reliable investment casting or MIM manufacturing partner
our engineering team is ready to help.
Contact CASTEM today to discuss your project and discover how our global manufacturing capabilities can support your business.