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CHYY Development Group Limited — Investor Relations & Filings

Ticker · 8128 HKEX Electricity, gas, steam and air conditioning supply
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Filings indexed 1,519 across all filing types
Latest filing 2026-04-30 Regulatory Filings
Country HK Hong Kong
Listing HKEX 8128

About CHYY Development Group Limited

http://www.chyy.com.hk

CHYY Development Group Limited is an investment holding company specializing in the research, development, promotion, and utilization of shallow ground source energy. The company provides comprehensive geothermal energy solutions, primarily for building heating, cooling, and domestic hot water supply. Core activities include the manufacturing and sale of renewable energy equipment, such as geothermal energy systems, heat pump products, pump wells, and buried pipes. The Group offers installation services, technical support, and full-spectrum technical services related to shallow ground energy development. Key product offerings include Distributed Geothermal Energy Cold/Heat Source Stations and Geothermal Energy Heat Pump Environmental Systems, often leveraging proprietary single-well pumping and injection technology. The company also provides property management services.

Recent filings

Filing Released Lang Actions
MONTHLY RETURN OF EQUITY ISSUER ON MOVEMENTS IN SECURITIES FOR THE MONTH ENDED 30 APRIL 2026
Regulatory Filings
2026-04-30 English
PROPOSED CHANGE OF COMPANY NAME
Regulatory Filings Classification · 1% confidence The document is an official announcement under the Hong Kong Listing Rules regarding a proposed change of company name, to be approved by shareholders at the forthcoming Annual General Meeting. It is not the full meeting materials (AGM presentation) nor a notice of dividend, share issue, or insider transaction. It does not include the full circular or proxy statement, nor is it a financial report. It is a general regulatory announcement that does not fit other specific categories and thus falls under the fallback category of Regulatory Filings (RNS).
2026-04-14 English
INSIDE INFORMATION LITIGATION RELATING TO A SUBSIDIARY
Legal Proceedings Report Classification · 1% confidence The document is clearly an announcement of litigation relating to a subsidiary, made pursuant to GEM Listing Rules and Inside Information Provisions. It provides updates on the civil summons, background of prior actions, amounts claimed in court, and the Company’s proposed defence. This falls squarely under Legal Proceedings Report (LTR) rather than an earnings release, annual report, management change, or proxy statement.
2026-04-08 English
2025 ENVIRONMENTAL, SOCIAL AND GOVERNANCE REPORT
Environmental & Social Information Classification · 1% confidence The document is titled “2025 Environmental, Social and Governance Report” and contains detailed disclosures on ESG governance, stakeholder participation, materiality assessment, environmental responsibility, social responsibility and other sustainability metrics. It is a standalone ESG report prepared in accordance with the HKEx ESG Reporting Guide, matching the “Environmental & Social Information” category. It is not an announcement of a report but the full ESG report itself.
2026-04-02 English
Annual Report 2025
Regulatory Filings
2026-04-02 English
MONTHLY RETURN OF EQUITY ISSUER ON MOVEMENTS IN SECURITIES FOR THE MONTH ENDED 31 MARCH 2026
Regulatory Filings Classification · 1% confidence The document is a standardized monthly return (Form FF301) filed with the Hong Kong Exchange under Chapter 19B listing rules, detailing movements in authorised and issued share capital, public float confirmation, and share issue arrangements (all unchanged). It is a regulatory compliance submission rather than an earnings report, board change, financing announcement, or stand-alone financial statement. As such, it falls under the general “Regulatory Filings” category (RNS).
2026-04-01 English

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