China Ground Source Energy Industry Group Ltd (8128) Fair Value & Analysis
Industrials · HK · Market cap HK$121M
Fair value as of: Aug 13, 2026
From 18 valuation models · updated 3 days ago
Fair value updated Aug 13, 2026, revised from HK$0.0254 to HK$0.0270 (+6.1%) since Aug 6, 2026.
Below-average quality, currently priced close to our fair value.
What matters now
- The price sits close to our fair value, market and models broadly agree here, little valuation tension.
- The models converge in a tight band (HK$0.0244 to HK$0.0270), unusually little disagreement for a valuation.
Price vs Fair Value (5 years)
White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Aug 13, 2026.
How to read this chart
60‑month range HK$0.0210 – HK$0.1040 · fair‑value band HK$0.0244 – HK$0.0270 · the HK$0.0260 price screens below the HK$0.0270 fair value. Dashed = 300-day average. As of Aug 13, 2026.
Analysis
China Ground Source Energy Industry Group Ltd (8128) currently trades at HK$0.0260, while our model-based Fair Value estimate is HK$0.0270, implying the stock looks roughly 3.9% fairly valued today. The Quality Score stands at 48/100 (below-average quality), in the Industrials sector. Bull case: trading below our estimate, it may offer upside if the fundamentals hold. Bear case: a low price can be a value trap when quality is weak or the data is thin (evidence: high), always confirm before acting.
Over the trailing twelve months, China Ground Source Energy Industry Group Ltd generated revenue of HK$47.8M at a net margin of 14.9%. Revenue declined 59.7% year over year. It earns a return on equity of 2.1%. Net debt stands at HK$13.9M. Fundamentals as of Aug 13, 2026
Our scenario range runs from HK$0.0244 (bear case) to HK$0.0270 (bull case); at HK$0.0260, the current price sits within that range. Bear and bull are the same models run on conservative and optimistic assumptions (margins, growth, valuation multiples), so a plausible valuation range, not a price target. The share trades about 42% below its 52-week high and 53% above its 52-week low, currently below its 200-day average. For context, the median of 10 Industrials peers we cover trades at -34% fair-value upside, at 4%, 8128 screens cheaper than that median.
Fair Value models
Each model estimates fair value its own way; the Fair Value above is the evidence-weighted blend. Evidence (0–100) measures how completely this model’s inputs are available: well-fed models carry more weight in the blend. The spread across models is intentional, each one stresses a different value driver; dividend models, for instance, come out structurally low when payout is small.
All 18 models by family
Widest divergence: Asset-Based (HK$0.0400) versus DCF Models (HK$0.0100). Highest evidence: Growth DCF (80).
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Key figures & financial health
More key figures
Figures from reported company fundamentals · as of Aug 13, 2026. TTM = trailing twelve months.
Quality Score breakdown
Of which business quality 45 · Market factors (momentum, volatility) 21
Non-valuation factor families (profitability, growth, cashflow, financial strength, momentum …), each academically grounded. Valuation itself sits in the Fair Value and is deliberately excluded here to avoid double-counting.
About the company
CHYY Development Group Limited, an investment holding company, engages in the research, development, and promotion of geothermal energy as alternative energy for building's heating applications in the People's Republic of China.
Full company description
CHYY Development Group Limited, an investment holding company, engages in the research, development, and promotion of geothermal energy as alternative energy for building's heating applications in the People's Republic of China. The company operates through four segments: Shallow Geothermal Energy, Air Conditioning/Shallow Geothermal Heat Pump, Property Investment and Development, and Securities Investment and Trading. The company is also involved in the planning and design, supply of renewable energy, intelligent manufacturing, engineering construction, and operation and maintenance; trading of air conditioning/shallow geothermal heat pump products; investment in properties; and trading securities and other types of investments. In addition, it provides sinking wells; property management; technical support services; and installs energy systems, as well as produces and sells geothermal energy systems. The company was formerly known as China Geothermal Industry Development Group Limited and changed its name to CHYY Development Group Limited in August 2022. CHYY Development Group Limited was incorporated in 2000 and is headquartered in Central, Hong Kong.
Company description, as reported by the company or data provider.
Revenue & earnings trend
FY2021 – FY2025 · reported fiscal years
China Ground Source Energy Industry Group Ltd reported revenue of HK$47.8M in FY2025 versus HK$177M in FY2021, a compound −27.9%/yr. Reported net income was HK$7.1M in FY2025.
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Peer Group
Engineering & Construction · 837 stocks
How this stock ranks against its industry: the green marker is this stock, the band is the typical 25–75% peer range, and the tick is the median.
Valuation Multiples vs Engineering & Construction median · lower = cheaper
Snowflake
Five quick dimensions, each 0 to 100: VALUE (fair-value potential), FUTURE (revenue growth), PAST (return on equity), HEALTH (low debt), DIVIDEND (yield). Green = this stock, grey = typical sector peer.
Values & ESG
Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.
ESG scores are not available for this stock yet. Values and ESG data are contextual and can differ between providers.
Similar stocks
10 more Engineering & Construction stocks, each showing price versus our Fair Value estimate (as of Aug 13, 2026).
| Stock | Price | Fair Value | vs Fair Value |
|---|---|---|---|
| Larsen & Toubro Limited LT | ₹4,020 | ₹1,994 | -50% |
| Samsung C&T Corporation 028260 | 357,500 KRW | 261,411 KRW | -27% |
| Hyundai Engineering & Construction Co 000720 | 113,700 KRW | 61,453 KRW | -46% |
| Samsung E&A Co 028050 | 49,300 KRW | 43,624 KRW | -12% |
| Rail Vikas Nigam Limited RVNL | ₹230.00 | ₹48.92 | -79% |
| Daewoo Engineering & Construction Co 047040 | 18,400 KRW | 6,507 KRW | -65% |
| KEPCO Engineering & Construction Company 052690 | 99,800 KRW | 19,346 KRW | -81% |
| GS Engineering & Construction Corporation 006360 | 35,200 KRW | 23,135 KRW | -34% |
| DL E&C Co 375500 | 73,500 KRW | 148,433 KRW | +102% |
| KEPCO Plant Service & Engineering Co 051600 | 46,350 KRW | 43,924 KRW | -5% |
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How we calculate Fair Value
Each company is valued through a stack of independent intrinsic-value models (DCF variants, residual-income, multiples and more), blended into one family-balanced consensus and weighted by how much trustworthy data backs it. A separate quality layer scores the fundamentals. Every input is real reported data, nothing guessed.
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