---
title: "Beijing Water Business Doctor Co., Ltd. (300055.SZ)"
type: "Symbol"
locale: "en"
url: "https://longbridge.com/en/quote/300055.SZ.md"
symbol: "300055.SZ"
name: "Beijing Water Business Doctor Co., Ltd."
industry: "Water Utilities"
datetime: "2026-05-20T22:40:53.847Z"
locales:
  - [en](https://longbridge.com/en/quote/300055.SZ.md)
  - [zh-CN](https://longbridge.com/zh-CN/quote/300055.SZ.md)
  - [zh-HK](https://longbridge.com/zh-HK/quote/300055.SZ.md)
---

# Beijing Water Business Doctor Co., Ltd. (300055.SZ)

## Company Overview

Beijing Water Business Doctor Co., Ltd. engages in water engineering and operation, hazardous and solid waste treatment, environmental protection, and equipment manufacturing businesses in China. It operates through four segments: Industrial Water Treatment, Waste Treatment Services, Financial Investment, and Chemical Materials. The company also offers isoprene, m-prene, dicyclopentadiene, carbon pentapet resin, and mixed xylene, which are used in rubber, elastomers, hot-melt adhesives, road sign paints, tires, pesticides and pharmaceutical intermediates, and other terminal application fields.

| Item | Detail |
|------|--------|
| Industry | Water Utilities |
| Exchange | CN Market |
| Website | [www.waterbd.cn](https://www.waterbd.cn) |

## Key Drivers
> *AI-analyzed key factors driving this stock's performance*


## Longbridge Financial Score™: C
> *Longbridge Financial Score™ — Proprietary multi-factor rating model by Longbridge*
> Updated: 2026-05-20T04:30:09.000Z

**Overall: C (0.58)**

**Industry**: Water Utilities

| Metric | Value |
|--------|-------|
| Industry Ranking | 11 / 23 |
| Industry Median | C |
| Industry Average | C |

- **Style**: Value - Stocks where the company's main business is in a mature stage.
- **Scale**: Small - The company's operation has a high degree of growth and volatility, making it easy to achieve high investment returns.

**Multi Score**: C

#### Style Score Score: 

| Indicator | Value | Rating |
|-----------|-------|--------|
| Revenue YoY | 2.30% |  |
| Net Profit YoY | -878.49% |  |
| P/B Ratio | 1.66 |  |
| Dividend Ratio | 0.15% |  |

#### Size Score Score: 

| Indicator | Value | Rating |
|-----------|-------|--------|
| Market Cap | 8147672748.98 |  |
| Revenue | 2725616885.81 |  |

#### Multi Score Score: C

| Indicator | Value | Rating |
|-----------|-------|--------|
| ROE | -4.73% | D |
| Profit Margin | -8.77% | D |
| Gross Margin | 9.58% | E |
| Revenue YoY | 2.30% | C |
| Net Profit YoY | -878.49% | E |
| Total Assets YoY | -0.46% | D |
| Net Assets YoY | -4.68% | D |
| Cash Flow Margin | 109.53% | C |
| OCF YoY | 2.30% | C |
| Turnover | 0.32 | D |
| Gearing Ratio | 37.86% | B |

```chart-data:radar
{
  "title": "Longbridge Financial Score - Beijing Water Business Doctor Co., Ltd.",
  "chart_type": "radar",
  "dimensions": [
    {
      "name": "Style Score",
      "grade": "",
      "indicators": [
        {
          "name": "Revenue YoY",
          "value": "2.30%",
          "rating": ""
        },
        {
          "name": "Net Profit YoY",
          "value": "-878.49%",
          "rating": ""
        },
        {
          "name": "P/B Ratio",
          "value": "1.66",
          "rating": ""
        },
        {
          "name": "Dividend Ratio",
          "value": "0.15%",
          "rating": ""
        }
      ]
    },
    {
      "name": "Size Score",
      "grade": "",
      "indicators": [
        {
          "name": "Market Cap",
          "value": "8147672748.98",
          "rating": ""
        },
        {
          "name": "Revenue",
          "value": "2725616885.81",
          "rating": ""
        }
      ]
    },
    {
      "name": "Multi Score",
      "grade": "C",
      "indicators": [
        {
          "name": "ROE",
          "value": "-4.73%",
          "rating": "D"
        },
        {
          "name": "Profit Margin",
          "value": "-8.77%",
          "rating": "D"
        },
        {
          "name": "Gross Margin",
          "value": "9.58%",
          "rating": "E"
        },
        {
          "name": "Revenue YoY",
          "value": "2.30%",
          "rating": "C"
        },
        {
          "name": "Net Profit YoY",
          "value": "-878.49%",
          "rating": "E"
        },
        {
          "name": "Total Assets YoY",
          "value": "-0.46%",
          "rating": "D"
        },
        {
          "name": "Net Assets YoY",
          "value": "-4.68%",
          "rating": "D"
        },
        {
          "name": "Cash Flow Margin",
          "value": "109.53%",
          "rating": "C"
        },
        {
          "name": "OCF YoY",
          "value": "2.30%",
          "rating": "C"
        },
        {
          "name": "Turnover",
          "value": "0.32",
          "rating": "D"
        },
        {
          "name": "Gearing Ratio",
          "value": "37.86%",
          "rating": "B"
        }
      ]
    }
  ]
}
```

## Valuation Analysis

| Metric | Current | Industry Ranking | High | Median | Low |
|--------|---------|-----------------|------|--------|-----|
| PE (TTM) | -34.88 | 23/23 | 166.96 | 142.42 | 122.66 |
| PB | 1.70 | 16/23 | 1.61 | 1.22 | 0.96 |
| PS (TTM) | 3.06 | 12/23 | 3.06 | 2.41 | 1.87 |
| Dividend Yield | 0.15% | 19/23 | 0.25% | 0.20% | 0.15% |

## Peer Comparison

| Rank | Name | Profit | Growth | Operation | Security | Cash | Rating |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 01 | BESTOO (001376.SZ) | B | C | B | B | C | B |
| 02 | Kingfore Energy (001210.SZ) | B | B | C | B | B | B |
| 03 | GRANDBLUE ENV (600323.SH) | B | A | D | D | B | C |
| 04 | Chongqing Water (601158.SH) | C | C | D | C | B | C |
| 05 | XREC (000598.SZ) | B | C | D | D | C | C |

## References

- [Company Overview — Profile, executives, shareholders, business breakdown](https://longbridge.com/en/quote/300055.SZ/overview.md)
- [Financial Reports — Income, balance sheet, cash flow, dividends](https://longbridge.com/en/quote/300055.SZ/norm.md)
- [Related News](https://longbridge.com/en/quote/300055.SZ/news.md)
- [Filings — Company announcements and regulatory filings](https://longbridge.com/en/quote/300055.SZ/filings.md)

---

> **Disclaimer: This article is for reference only and does not constitute any investment advice.**