---
title: "China National Building Material Plunges 10% After PCB Hype Pullback"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/290134952.md"
description: "China National Building Material fell 10.29% during HK trading to HK$5.89 on profit-taking following 20%+ surge yesterday."
datetime: "2026-06-18T03:24:49.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/290134952.md)
  - [en](https://longbridge.com/en/news/290134952.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/290134952.md)
generator: "portal-rs"
---

# China National Building Material Plunges 10% After PCB Hype Pullback

China National Building Material (3323.HK) plunged more than 10% during regular trading to **HK$5.89**, with turnover reaching **HK$838 million**.

The stock surged over 20% yesterday on speculation about the PCB concept, with market analysis revealing holdings in new materials companies including Sinomaterial Technology and Sinoma High-Tech, with related assets valued at over **HK$153.6 billion**. Today the broader HK market weakened with the Hang Seng Index falling over 2%, as China National Building Material saw notable profit-taking along with the wider market.

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