Our products have been featured on the cover of the globally acclaimed magazine "Compound Semiconductor," which is widely read in the semiconductor industry. The article introduces products for the next-generation semiconductor "SiC (Silicon Carbide)," which is gaining attention for its high power and miniaturization in electronics, starting with electric vehicles. Although it's in English, please feel free to take a look: https://compoundsemiconductor.net/article/114825/The_Secret_Sauce_Of_Silicon_Carbide We also welcome inquiries regarding our products for SiC. Please feel free to contact us.

Due to the change of our company name and the relocation of our office, we have completely renewed our company brochure. It includes introductions to our new products and our factory. If you wish, please download it from the catalog page for your use. ----- Micro Diamond, which has contributed to customers through precision classification, has acquired the American CMP-related company Eminess Technology and has become Pureon. In addition to our high-quality diamond-related products, we will also accumulate know-how regarding final finishing CMP in-house. What is important for our customers is the final finish. Even now, we receive inquiries about our diamond polishing with the aim of shortening the CMP process time. In the future, we will comprehensively accept consultations from grinding and polishing to CMP.

We are pleased to announce that our company will be relocating our headquarters office as part of our business expansion, as detailed below. Please note that we will continue to operate as usual at our old office until Friday, July 30. Additionally, due to the relocation, our main telephone and fax numbers will change as follows. We apologize for the inconvenience and kindly ask you to update your records accordingly. We would appreciate it if you could inform the relevant parties within your company about this address change. Taking this opportunity, all of our employees will strive even harder, and we look forward to your continued support. 【Details】 ■ Start date: Monday, August 2, 2021 ■ New address: 〒231-0021 7 Nihon Odori, Naka Ward, Yokohama City, Kanagawa Prefecture, 5th Floor, Gojinsha Yokohama Nihon Odori 7 Building ■ Phone number: 045-264-8425 ■ Fax number: 045-264-9718 ■ Inquiries: cs.jp@pureon.com

In December 2020, our company Microdiamant acquired Eminess Technologies (www.eminess.com), which is engaged in CMP process-related business in the United States. With this acquisition, we will be able to offer CMP-related technologies in addition to our products related to grinding and polishing of diamonds and CBN. Furthermore, from the perspective of brand restructuring associated with this acquisition, our company name will be changed as follows. We sincerely apologize for any inconvenience this may cause, but we would like to proceed with the necessary procedures for the name change. We are committed to addressing our customers' technical challenges more broadly and comprehensively in grinding, polishing, and CMP. We look forward to your continued support. 【Details】 ■ New Company Name: Pureon Japan Co., Ltd. ■ English Name: Pureon Ltd. ■ Name Change Date: May 1, 2021