---
title: "Samsung Electro-Mechanics, Sumitomo Chemical Unit Form Glassem JV for Glass Core Materials"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/291852138.md"
description: "Samsung Electro-Mechanics and Sumitomo Chemical's Dongwoo Fine-Chem signed an agreement to form a joint venture, Glassem, for producing glass core materials. This move coincides with BOE Technology Group unveiling its glass-substrate packaging carrier board business. The industry is increasingly focusing on glass substrates as alternatives to traditional organic ones, which are approaching performance limits."
datetime: "2026-07-06T23:22:34.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/291852138.md)
  - [en](https://longbridge.com/en/news/291852138.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/291852138.md)
generator: "portal-rs"
---

# Samsung Electro-Mechanics, Sumitomo Chemical Unit Form Glassem JV for Glass Core Materials

Samsung Electro-Mechanics said on July 2 that it signed a master agreement with Dongwoo Fine-Chem, a wholly owned subsidiary of Japan’s Sumitomo Chemical Group, to jointly establish a venture named “Glassem” to produce glass core materials used in glass substrates, according to Jiemian News. On the same day, BOE Technology Group unveiled its glass-substrate packaging carrier board business to the market for the first time at its 2026 Investor Day event. The report said the glass-substrate theme has remained strong in China’s A-share market and has drawn attention across the advanced semiconductor packaging supply chain, as the industry looks beyond traditional organic substrates that are nearing performance and reliability limits.

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---
> **Disclaimer: This article is for reference only and does not constitute any investment advice.**