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Zhejiang ChangAn Renheng Technology Co Ltd (8139) fair value: what the stock is really worth

As of Oct 9, 2026: fair value of Zhejiang ChangAn Renheng Technology Co Ltd HK$3.19, price HK$1.20, upside +165.8%, quality 40 out of 100. Calculated from audited financials with 26 valuation models and 37 quality factors, updated daily.

  1. Fair value above price? Yes
  2. Good quality? No
  3. Add to watchlist

Basic Materials · HK · Home China · ISIN CNE100003DZ0

ZC Thin data Oct 4, 2026

Zhejiang ChangAn Renheng Technology Co Ltd

8139 · HK

Cheap, value-trap riskThe stock looks deeply undervalued, but low quality raises value-trap risk.

Fair value HK$3.19 · Strongly undervalued (+165.8%)
Low debt
Ranks above peers (10/11)
Quality 40/100
Expensive Growth (revenue 5y +13.0 %/yr in HKD)
Thin margins · 7.5% net margin (TTM)
Moderate moat 48/100
Negative free cash flow
Thin data
⟳ Cyclical

What runs behind every stock

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

Price vs Fair Value

HK$2.24 HK$0.8200 Fair Value HK$3.19 May 2021 Oct 2026

White line = price, green steps = our fair value per fiscal year, dashed = 300-day average. As of Oct 4, 2026.

How to read this chart

60‑month range HK$0.8200 – HK$2.24 · fair‑value band HK$2.88 – HK$3.46 · the HK$1.20 price screens below the HK$3.19 fair value. Dashed = 300-day average. As of Oct 4, 2026.

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Company profile

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.

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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.

Stock analysis

Zhejiang ChangAn Renheng Technology Co Ltd (8139) currently trades at HK$1.20, while our model-based Fair Value estimate is HK$3.19, implying the stock looks roughly 62.4% undervalued today.

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Valuation

Bull case: the Multiples group reads highest at a median of HK$4.31 per share, and 6 of the 6 models we run sit above the HK$1.20 price.

Bear case: the Asset-Based group reads lowest at HK$2.43, and 0 of the 6 models stay below the price. Evidence for this calculation is low.

Scenario range: HK$2.88 (bear) to HK$3.46 (bull), the price of HK$1.20 sits below it. Bear and bull are the same models on cautious and optimistic assumptions, a range, not a price target.

Quality & growth

The Quality Score stands at 40/100 (below-average quality), in the Basic Materials sector.

Expensive Growth: The company is growing, but growth may require heavy reinvestment or weak cash conversion.

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

Key figures

Market cap HK$46.1M (≈ $5.9M) · P/E ratio 2.4 · P/S ratio 0.21 · Net margin 0.0% · Return on equity 13.4% · Return on assets (EBIT) 3.3% · Operating margin 16.3% · Revenue (TTM) 222M CNY.

Competitive moat

Our AI-assisted moat analysis scores the competitive advantage at 50 out of 100 (low confidence).

What moves the price

The share trades about 29% below its 52-week high and 14% above its 52-week low, currently below its 200-day average.

For context, the median of 10 Basic Materials peers we cover trades at −27% fair-value upside, at 166%, 8139 screens cheaper than that median.

Fair Value models

Bear HK$2.88 Fair Value HK$3.19 Bull HK$3.46
Price HK$1.20 · Upside +165.8%
Model ⓘEach model values the company its own way (discounted cash flow, earnings, assets, dividends). The fair value above is their evidence-weighted blend, not the output of a single model. Bear ⓘBear = the cautious scenario: the same model computed with conservative anchors (lower growth, margins and valuation multiples). Together with Bull it frames a plausible valuation range, not a price target.BaseBull ⓘBull = the optimistic scenario: the same model computed with favourable anchors (higher growth, margins and valuation multiples). Together with Bear it frames a plausible valuation range, not a price target. If a model's bull case is above four times its base value, the table shows that limit with a > sign (like the overall Bull above): beyond it no assumption holds. Evidence ⓘEvidence = how well-backed THIS model's estimate is for this stock (0–100): how complete and reliable its input data are, and how well the model fits the company. The final Fair Value is an evidence-weighted blend, so better-evidenced models count more. Green ≥70, amber 50–69, grey below 50.
Highest evidence
EPV HK$2.89 HK$3.21 HK$3.48 74
ROIC Compounder HK$2.89 HK$3.21 HK$3.48 72
EV/EBITDA HK$6.92 HK$8.92 HK$10.93 67
All 6 models by family
Earnings-Based
EPV HK$2.89 HK$3.21 HK$3.48 74
Multiples
EV/EBIT HK$3.46 HK$4.31 HK$5.16 66
EV/EBITDA HK$6.92 HK$8.92 HK$10.93 67
EV/Revenue HK$3.12 HK$4.06 HK$5.01 54
Asset-Based
NCAV (Graham) HK$1.81 HK$2.43 HK$3.62 54
Economic Profit
ROIC Compounder HK$2.89 HK$3.21 HK$3.48 72

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Quality Score breakdown

Overall quality 40/100

Of which business quality 35 · Market factors (momentum, volatility) 29

Profitability 25
Margins and returns on capital today
Quality Growth 35
Are margins and returns improving?
Cashflow 13
Earnings quality: real cash, not paper profit
Fin. Strength 20
Balance sheet, leverage, solvency risk
Investment 65
Disciplined investing over empire-building
Low Volatility 42
Calm price path (market factor)
Momentum 31
Price trend over the last 3–12 months (market factor)
52W Momentum 13
Distance to the 52-week high (market factor)
Net Issuance 82
Share count: buybacks or dilution?

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Revenue & earnings trend

Growth Quality ⓘGrowth is valuable only when reinvestment earns attractive returns (Aswath Damodaran): sustainable growth depends on return on capital, reinvestment and efficiency. Basis: total company revenue over the periods shown on the cards (3Y/5Y/all years), not per share, so a merger can show up as a growth jump; per-share earnings growth is in the value-creation card. 61/100
The company is growing, but growth may require heavy reinvestment or weak cash conversion.
Revenue growth 1 year
+6.5%
Revenue growth 3 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+11.2%
Revenue growth 5 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+13.0%
Start year 2020 (pandemic). Over 10 years: +10.4% a year
Revenue growth 13 years ⓘMeasures the company's TOTAL revenue from reported annual statements: compound average growth per year (CAGR) from the fiscal year 3, 5 or N years back to the most recent comparable fiscal year. Not per share: buybacks do not change this number, and a merger can appear as a growth jump. Per-share growth (which does include buybacks) is in the value-creation card.
+7.7%
Profit margin (trend) ⓘOperating margin then vs now, from reported annual statements. A falling margin after a boom year is the classic peak-earnings signal: the growth rate then leans on an inflated base.
6.6% (2020) → 3.8% (2025)
What shareholders gained per year ⓘWe only publish this rate when it is defensible. Reason: fiscal 2025 is a loss year, no rate is defined from a loss
not computed

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Peer Groupⓘ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.Chemicals · 336 stocks

Beats the industry median on 10/11 measures
Overall it ranks above its industry peers.
Valuation
Quality Score 40 · Bottom 25%
Fair Value upside +165.8% · Top 25%
Profitability
Return on equity (TTM) 13.4% · Top 25%
Return on assets 3.4% · Above median
Net margin (TTM) 7.5% · Above median
Operating margin (TTM) 16.3% · Top 25%
Growth and dividend
Revenue growth 15.3% · Above median
Balance sheet
Debt / equity 0.07× · Below median

Valuation Multiplesvs Chemicals median · lower = cheaper

P/E (TTM) 2.4× · Cheapest 25%
P/B 0.33× · Cheapest 25%
P/S (TTM) 0.18× · Cheapest 25%

Strength profile in five axes (Snowflake)

VALUEFUTUREPASTHEALTHDIVIDEND
This stock
VALUEFUTUREPASTHEALTHDIVIDEND
Sector peers
VALUE (fair-value potential)100 · sector 2
FUTURE (revenue growth)77 · sector 63
PAST (return on equity)54 · sector 23
HEALTH (low debt)96 · sector 94
DIVIDEND (yield)0 · sector 32

Context: sector, industry, market

Values & ESG

Does this company touch areas you may want to avoid? The classification is inferred from sector and industry.

None of the checked exposures detected

Similar stocks

10 more Chemicals stocks, each showing price versus our Fair Value estimate.

Stock Price Fair Value vs Fair Value Compare
Hengli Petrochemical Co 600346 ¥16.15 ¥43.28 +168% vs 8139
LG Chem, Ltd 051910 252,500 KRW 587,755 KRW +133% vs 8139
Ningxia Baofeng Energy Group 600989 ¥22.33 ¥40.44 +81% vs 8139
Zangge Mining Company 000408 ¥71.46 ¥78.61 +10% vs 8139
Dow Inc DOW $28.59 $20.98 −27% vs 8139
Zhejiang Juhua Co 600160 ¥33.97 ¥19.25 −43% vs 8139
Syensqo SA SYENS €78.20 €32.87 −58% vs 8139
PETRONAS Chemicals Group 5183 4.49 MYR 1.51 MYR −66% vs 8139
Formosa Chemicals & Fibre Corporation 1326 67.00 TWD 17.68 TWD −74% vs 8139
Jiangsu Eastern Shenghong Co 000301 ¥13.36 ¥3.06 −77% vs 8139

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Cite: Fair Value Calculator (2026). "Zhejiang ChangAn Renheng Technology Co Ltd Fair Value". https://www.fairvalue-calculator.com/stock/8139

Frequently asked questions

Is Zhejiang ChangAn Renheng Technology Co Ltd (8139) overvalued or undervalued?
As of Oct 4, 2026, our model estimates a fair value of HK$3.19 versus a price of HK$1.20, about +166% upside (undervalued).
What is the fair value of 8139?
Our model-based fair value for Zhejiang ChangAn Renheng Technology Co Ltd is HK$3.19 (as of Oct 4, 2026), built from audited fundamentals. The current price: HK$1.20.
What is the quality score of 8139?
Zhejiang ChangAn Renheng Technology Co Ltd has a Quality Score of 40/100. It measures business quality (profitability, growth, cash flow, balance-sheet strength, investment discipline, share issuance). Market factors such as price momentum and volatility do not enter the number; they are shown separately in the detail view.
What is the price target for Zhejiang ChangAn Renheng Technology Co Ltd (8139)?
Our model-based price target is the fair value of HK$3.19 (as of Oct 4, 2026) from 6 valuation models. Cautious scenario HK$2.88, optimistic scenario HK$3.46. It is a calculation from audited fundamentals, not an analyst target.
What is the Zhejiang ChangAn Renheng Technology Co Ltd stock forecast for 2026?
Our models put fair value at HK$3.19, about +166% upside versus a price of HK$1.20 (undervalued). Cautious scenario HK$2.88, optimistic scenario HK$3.46. The calculation is refreshed regularly with new filings.
What is the revenue of Zhejiang ChangAn Renheng Technology Co Ltd (8139)?
Zhejiang ChangAn Renheng Technology Co Ltd reported trailing-twelve-month revenue of about 222M CNY (latest available figure, as of Oct 4, 2026).
What is the intrinsic value of Zhejiang ChangAn Renheng Technology Co Ltd (8139)?
Intrinsic value and fair value mean the same thing: what the business is worth on its numbers, independent of the share price. For Zhejiang ChangAn Renheng Technology Co Ltd it is HK$3.19 per share (as of Oct 4, 2026), against a price of HK$1.20. It is the blended result of 6 valuation models (cash flow, earnings, asset, dividend).
Is Zhejiang ChangAn Renheng Technology Co Ltd stock overvalued or undervalued in 2026?
As of Oct 4, 2026, 8139 trades below its calculated fair value: price HK$1.20, fair value HK$3.19, a gap of about +166% (undervalued). The calculation is refreshed with each new quarterly report, so the verdict can change during the year.
Is fair value the same as the market price of 8139?
No. The price is what the market pays today (HK$1.20); the fair value is what the company's own numbers justify (HK$3.19). For Zhejiang ChangAn Renheng Technology Co Ltd the two are HK$1.99 per share apart. That gap is exactly why we show both numbers side by side.
How much is Zhejiang ChangAn Renheng Technology Co Ltd worth?
The market values Zhejiang ChangAn Renheng Technology Co Ltd at about HK$46.1M (market capitalisation, as of Oct 4, 2026). Per share that is HK$1.20; our models calculate a fair value of HK$3.19 per share.
What do the bullish and bearish scenarios say about 8139?
Our models span a range for Zhejiang ChangAn Renheng Technology Co Ltd: cautious scenario HK$2.88, base HK$3.19, optimistic HK$3.46 per share (as of Oct 4, 2026, price HK$1.20). The range comes from different growth and margin assumptions, not from analyst opinions.
What is the P/E ratio of 8139?
Zhejiang ChangAn Renheng Technology Co Ltd trades at a price-to-earnings ratio of 2.4 (as of Oct 4, 2026). A P/E on its own says little: it compares the price with ONE year of profit, while our fair value of HK$3.19 is built from several models across several years. Other multiples: P/B 0.3, P/S 0.2.
How solid is the balance sheet of Zhejiang ChangAn Renheng Technology Co Ltd (8139)?
Balance-sheet figures for Zhejiang ChangAn Renheng Technology Co Ltd (as of Oct 4, 2026): return on equity 13.4%, debt of 0.07 per unit of equity. They feed the Quality Score of 40/100, which measures business quality independently of the share price.
How far is 8139 from its 52-week high?
Zhejiang ChangAn Renheng Technology Co Ltd trades at HK$1.20, about 29% below its 52-week high of HK$1.70 and 14% above the low of HK$1.05 (as of Oct 9, 2026). Distance from the high says nothing about value: that is what the fair value of HK$3.19 is for.
Which stocks are comparable to Zhejiang ChangAn Renheng Technology Co Ltd?
From the same area (Basic Materials) we also value Ningxia Baofeng Energy Group, Dow Inc, Hengli Petrochemical Co, Zangge Mining Company, among others. Each of them has its own fair-value calculation on this site using the same models, so the comparison is like for like.
Is Zhejiang ChangAn Renheng Technology Co Ltd stock attractive at the current price?
The data as of Oct 4, 2026: price HK$1.20, calculated fair value HK$3.19 (+166%), Quality Score 40/100, from 6 models. Whether that fits your horizon and risk tolerance is your call. We provide the calculation, not investment advice.
How is the fair value of 8139 calculated?
We run Zhejiang ChangAn Renheng Technology Co Ltd through 6 models from four families: discounted cash flow, earnings models, asset and balance-sheet models, and dividend models. Every model gets the same audited fundamentals; the result is the weighted average of HK$3.19, with the spread shown as a cautious and an optimistic scenario.
Is it still worth investing in stocks now?
The global stock market currently sits 14.6 % above its aggregate fair value. Zhejiang ChangAn Renheng Technology Co Ltd currently trades 62 % below its own fair value, and the market average says nothing about that. An expensive market is no reason to stay out and no reason to buy everything at once: keep a broad savings plan running, buy single stocks only with money you can do without, and hold part of your money liquid while the market is high. The full picture including sectors is on is it worth investing now.
What is the share price of Zhejiang ChangAn Renheng Technology Co Ltd (8139)?
The closing price on Oct 9, 2026 was HK$1.20. Our model-based fair value is HK$3.19, about +166% upside (undervalued). We carry closing prices from our data provider, not a live tick.
What should I pay attention to with Zhejiang ChangAn Renheng Technology Co Ltd right now?
The large discount to fair value meets weak quality (40/100). That raises the risk this is a value trap rather than a bargain. The price is below even our cautious bear case (HK$2.88). The market is more pessimistic than our downside scenario. The large gap to fair value rests on thin data (low evidence): fewer applicable models and a shorter history. Read it with extra caution.
Where does the earnings growth of Zhejiang ChangAn Renheng Technology Co Ltd (8139) come from?
Earnings per share at Zhejiang ChangAn Renheng Technology Co Ltd grew −14.8 % a year from 2014 to 2025. Broken into its drivers: revenue per share +6.2 %, EBIT margin −12.0 %, tax rate +0.6 %, residual (interest, one-offs) −9.3 %. The four rates multiply to the earnings growth rate, they do not add up. Start and end are three-year averages so a single exceptional year does not distort the result.

Key figures of Zhejiang ChangAn Renheng Technology Co Ltd

How large is the market capitalisation of Zhejiang ChangAn Renheng Technology Co Ltd (8139)?
The market capitalisation of Zhejiang ChangAn Renheng Technology Co Ltd is HK$46.1M (≈ $5.9M). The stock-market value of the whole company: share price times number of shares. It is what the market asks for the entire business today.
What is the P/S ratio of Zhejiang ChangAn Renheng Technology Co Ltd (8139)?
The price-to-sales ratio of Zhejiang ChangAn Renheng Technology Co Ltd is 0.21 (last twelve months). Price to sales: market value relative to yearly revenue. Useful when profit is thin or distorted.
What is the net margin of Zhejiang ChangAn Renheng Technology Co Ltd (8139)?
The net margin of Zhejiang ChangAn Renheng Technology Co Ltd is 0.0% (fiscal year 2025). How much of every unit of revenue ends up as profit. 10% means 10 cents of profit per dollar of sales.
What is the return on equity of Zhejiang ChangAn Renheng Technology Co Ltd (8139)?
The return on equity (ROE) of Zhejiang ChangAn Renheng Technology Co Ltd is 13.4% (last twelve months). Profit relative to shareholders' equity, how efficiently the company works with its owners' money.
What is the EBIT return on assets of Zhejiang ChangAn Renheng Technology Co Ltd (8139)?
On an EBIT basis the return on assets of Zhejiang ChangAn Renheng Technology Co Ltd is 3.3% (avg 5y). Operating profit (EBIT) relative to everything the company owns, as a multi-year average. It describes the business model rather than one good or bad year.
What is the operating margin of Zhejiang ChangAn Renheng Technology Co Ltd (8139)?
The operating margin of Zhejiang ChangAn Renheng Technology Co Ltd is 16.3% (last twelve months). Profit from the core business (before interest and taxes) relative to revenue.
How fast is revenue growing at Zhejiang ChangAn Renheng Technology Co Ltd (8139)?
Revenue at Zhejiang ChangAn Renheng Technology Co Ltd is growing +15.3% versus a year earlier (3y avg +11.2%). How much revenue grew versus a year earlier (YoY). The 3-year average next to it puts the single year in context.
How fast are earnings growing at Zhejiang ChangAn Renheng Technology Co Ltd (8139)?
Earnings per share at Zhejiang ChangAn Renheng Technology Co Ltd are growing −67.5% versus a year earlier. How much earnings per share grew versus a year earlier.
How much free cash flow does Zhejiang ChangAn Renheng Technology Co Ltd (8139) generate?
The free cash flow of Zhejiang ChangAn Renheng Technology Co Ltd is −9.3M CNY (fiscal year 2025). The cash truly left after running and investing in the business, this is what pays dividends and buybacks.
How much net debt does Zhejiang ChangAn Renheng Technology Co Ltd (8139) carry?
The net debt of Zhejiang ChangAn Renheng Technology Co Ltd is 160M CNY (fiscal year 2025). Debt minus cash on hand. The note shows how many years of free cash flow could in theory pay it off.
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