Kyocera Corporation plans to build a new processing plant at one of its Japanese facilities to recover tungsten carbide – the main raw material for carbide – from used cutting tools. The commissioning of the plant is scheduled for the fiscal year 2030.
The Japanese Ministry of Economy, Trade and Industry has confirmed the initiative as part of its program 'Plan for Securing a Stable Supply of Critical Minerals' (2026 Critical Minerals No. 5-1).
Tungsten is an important raw material that serves as a main component of cutting tools essential for the production of automobiles, aircraft, and other products. Additionally, it is used in semiconductors and electronic components. However, the majority of Japan's tungsten consumption is covered by imports, making a stable supply increasingly important in light of rising global demand and increased supply risks.
To address this challenge, Kyocera has developed its proprietary 'amino acid-based optimized process' that utilizes naturally derived amino acids. By reducing the steps required in the refining process, this technology enables efficient recovery of tungsten carbide from used cutting tools and thus contributes to promoting resource circular economy. At the same time, fewer process steps are required compared to conventional refining methods.
Kyocera has long been committed to extending the lifespan of cutting tools, promoting their reuse through regrinding, and collecting used tools. With the new plant, the company will further strengthen its resource-efficient circular economy. The goal of this initiative is to ensure a stable supply of tungsten, enhance the resilience of the supply chain, and contribute to a resource-efficient circular society.
Contact:
