Rastar Environmental Protection Materials Co.Ltd. (300834) Fair Value & Analysis
Basic Materials · CN · Market cap 9.1B CNY
Structural break: The valuation model sees a lasting decline in earnings power for this stock, the confidence band is broken. Treat the target with caution.
Strengths
Risks
Fair value as of: Aug 13, 2026
From 19 valuation models · updated 9 days ago
Share price +3.4% over the past month.
A solid business, but screening 89% overvalued on our models.
What runs behind every stock
69 individual criteria per stock, every one traceable See the method →
What matters now
- The price sits above even our optimistic bull case (¥5.51). The favourable scenario is already priced in.
- Solid but not exceptional quality (56/100) and above fair value, neither a clear bargain nor a standout compounder.
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
55‑month range ¥13.89 – ¥50.15 · fair‑value band ¥3.31 – ¥5.51 · the ¥39.36 price screens above the ¥4.41 fair value. Dashed = 300-day average. As of Aug 13, 2026.
Analysis
Rastar Environmental Protection Materials Co.Ltd. (300834) currently trades at ¥39.36, while our model-based Fair Value estimate is ¥4.41, implying the stock looks roughly 88.8% overvalued today. The Quality Score stands at 56/100 (solid quality), in the Basic Materials sector. Bear case: priced above our estimate, the market already discounts strong expectations. Bull case: above-average quality can justify a premium, the entry price still matters most (evidence: high).
Over the trailing twelve months, Rastar Environmental Protection Materials Co.Ltd. generated revenue of 1.2B CNY at a net margin of 4.3%. Revenue declined 26.2% year over year. It earns a return on equity of 1.8%. Net debt stands at 723M CNY. Fundamentals as of Aug 13, 2026
Our scenario range runs from ¥3.31 (bear case) to ¥5.51 (bull case); at ¥39.36, the current price sits above 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 26% below its 52-week high and 87% above its 52-week low, currently above its 200-day average. For context, the median of 10 Basic Materials peers we cover trades at -55% fair-value upside, at -89%, 300834 screens richer 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 19 models by family
Widest divergence: Asset-Based (¥10.12) versus Earnings-Based (¥2.16). 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 58 · Market factors (momentum, volatility) 67
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
Rastar Environmental Protection Materials Co., Ltd. is mainly engaged in the manufacture and sale of plastic in China and internationally. The company also engages in research and development, production and sales of polystyrene. The company provides high-impact polystyrene and general-purpose polystyrene products.
Full company description
Rastar Environmental Protection Materials Co., Ltd. is mainly engaged in the manufacture and sale of plastic in China and internationally. The company also engages in research and development, production and sales of polystyrene. The company provides high-impact polystyrene and general-purpose polystyrene products. Its products are primarily used in electronic appliances, toys, daily plastic products, plastic packaging, building materials, medical equipment, and other fields. The company was founded in 2006 and is based in Shantou, China.
Company description, as reported by the company or data provider.
Revenue & earnings trend
FY2021 – FY2025 · reported fiscal years
Rastar Environmental Protection Materials Co.Ltd. reported revenue of ¥1.3B in FY2025 versus ¥2.0B in FY2021, a compound −9.8%/yr. Reported net income was ¥50.2M in FY2025, compounding −35.6%/yr from FY2021.
300834 screens 89% overvalued. Compare with BASF SE →
Peer Group
Chemicals · 332 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.
VALUE 0: the price sits above our fair-value range.
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 13, 2026).
| Stock | Price | Fair Value | vs Fair Value |
|---|---|---|---|
| BASF SE BASN | 1,034 MXN | 467.04 MXN | -55% |
| PT Barito Pacific Tbk, BRPT | 1,855 IDR | 1,584 IDR | -15% |
| LG Chem, Ltd 051910 | 252,500 KRW | 587,755 KRW | +133% |
| SRF Limited 503806 | ₹2,609 | ₹749.17 | -71% |
| 542812 542812 | ₹4,709 | ₹791.05 | -83% |
| Navin Fluorine International Limited NAVINFLUOR | ₹8,196 | ₹2,199 | -73% |
| Deepak Nitrite Limited DEEPAKNI | ₹1,768 | ₹824.05 | -53% |
| 523642 523642 | ₹2,484 | ₹1,745 | -30% |
| 506285 506285 | ₹4,048 | ₹1,589 | -61% |
| Kansai Nerolac Paints Limited 500165 | ₹209.25 | ₹80.51 | -62% |
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Frequently asked questions
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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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