---
title: "China National Building Material Soars Nearly 20% On PCB Concept Hype"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/290001888.md"
description: "China National Building Material (3323.HK) surged 19.85% to 6.35 HKD during regular trading on AI PCB supply chain speculation."
datetime: "2026-06-17T05:14:18.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/290001888.md)
  - [en](https://longbridge.com/en/news/290001888.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/290001888.md)
---

# China National Building Material Soars Nearly 20% On PCB Concept Hype

China National Building Material (3323.HK) soared **19.85%** in Hong Kong trading to **6.35 HKD**, with turnover exceeding **1.86 billion HKD**.

Investors are 挖掘 ing value in PCB-related assets held by the company. Subsidiary CJS produces glass fiber cloth used as core raw material for copper-clad boards, while SINOMATECH has secured batch supply agreements with major domestic and international customers.

Goldman Sachs notes AI servers are driving demand toward material upgrades rather than just increased production volume, creating pricing leverage upstream at the glass fiber stage. Additionally, recent government energy efficiency and carbon reduction initiatives targeting cement and steel sectors further supported the building materials group.

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