Zhejiang ChangAn Renheng Technology Co Ltd (8139) Fair Value & Analysis

Basic Materials · HK · Market cap HK$40.3M

Below-average quality, trading 66% below our fair value.

What runs behind every stock

26 valuation models 8 families, DCF to NCAV 37 quality factors margins, balance sheet, cashflow, debt 6 AI factors moat, what no ratio measures 2,000+ data points verified, per stock, median

69 individual criteria per stock, every one traceable See the method →

What matters now

• The large discount to fair value meets weak quality (36/100). That raises the risk this is a value trap rather than a bargain.
• The price is below even our cautious bear case (HK$1.79). The market is more pessimistic than our downside scenario.
• The model range is unusually wide (HK$1.79 to HK$5.77). The outcome hinges heavily on assumptions, so read the point estimate with caution.
• The large gap to fair value rests on thin data (low evidence): fewer applicable models and a shorter history. Read it with extra caution.

Price vs Fair Value (5 years)

White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Aug 17, 2026.

How to read this chart

60‑month range HK$0.8200 – HK$2.39 · fair‑value band HK$1.79 – HK$5.77 · the HK$1.28 price screens below the HK$3.78 fair value. Dashed = 300-day average. As of Aug 17, 2026.

Full chart & analysis →

Which stocks are undervalued right now? Check free Discover now →

Analysis

Zhejiang ChangAn Renheng Technology Co Ltd (8139) currently trades at HK$1.28, while our model-based Fair Value estimate is HK$3.78, implying the stock looks roughly 195.3% undervalued today. The Quality Score stands at 36/100 (below-average quality), in the Basic Materials 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: low), always confirm before acting.

Trailing-twelve-month revenue stands at HK$207M. Revenue grew 5.5% year over year. It earns a return on equity of -0.1%. Net debt stands at HK$160M. Fundamentals as of Aug 17, 2026

Our scenario range runs from HK$1.79 (bear case) to HK$5.77 (bull case); at HK$1.28, the current price sits below 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 29% below its 52-week high and 22% above its 52-week low, currently below its 200-day average. For context, the median of 10 Basic Materials peers we cover trades at -54% fair-value upside, at 195%, 8139 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.

Widest divergence: Multiples (HK$3.67) versus Asset-Based (HK$2.07). Highest evidence: ROIC Compounder (72).

Key figures & financial health

Quality Score breakdown

About the company

Zhejiang Chang'an Renheng Technology Co., Ltd., together with its subsidiaries, research, develops, produces, and sells bentonite fine chemicals in the People's Republic of China.

Full company description

Zhejiang Chang'an Renheng Technology Co., Ltd., together with its subsidiaries, research, develops, produces, and sells bentonite fine chemicals in the People's Republic of China. The company uses bentonite to manufacture paper chemicals, bentonite for metallurgy pellet, calcium-bentonite, organic bentonite, and other products; inorganic gel; putty powder; dry strength agent; and other chemicals, such as flocculating agents primarily used in sewage purification. The company's products are used in paint coatings, water treatment, and oil fields. It is also involved in clay mining and processing; and wholesale and retail of chemicals and equipment. The company was formerly known as Changxing Renheng Fine Bentonite Co., Ltd. and changed its name to Zhejiang Chang'an Renheng Technology Co., Ltd. in December 2008. Zhejiang Chang'an Renheng Technology Co., Ltd. was founded in 2000 and is headquartered in Changxing, the People's Republic of China.

Company description, as reported by the company or data provider.

Revenue & earnings trend

FY2021 – FY2025 · reported fiscal years

Zhejiang ChangAn Renheng Technology Co Ltd reported revenue of HK$207M in FY2025 versus HK$144M in FY2021, a compound +9.5%/yr. Reported net income was −HK$76.4K in FY2025.

Watch 8139: get an alert when its fair value changes →

Peer Group

Chemicals · 337 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 Chemicals 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.

Similar stocks

10 more Chemicals stocks, each showing price versus our Fair Value estimate (as of Aug 17, 2026).

Explore undervalued stocks

More undervalued Basic Materials stocks →

Discover undervalued stocks

Pick a strategy and jump into the live analysis with that exact screen applied.

Discover tools

Frequently asked questions

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.