TIANF (Tianneng Power International) ROE % Adjusted to Book Value: 17.40% (As of Dec. 2025)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

TIANF Tianneng Power International Ltd TIANF
51 GF Score
Price $0.60
GF Value $0.63
Valuation Fairly Valued
! 6 Warning Signs
View Full Analysis

What is Tianneng Power International ROE % Adjusted to Book Value?

Tianneng Power International TIANF 51 ROE % Adjusted to Book Value is 17.40% as of Dec. 2025. GuruFocus rates TIANF with a GF Score™ of 51/100 and a GF Value™ of $0.63 (Fairly Valued). The stock has 6 warning signs investors should review.

Tianneng Power International's ROE % for the quarter that ended in Dec. 2025 was 7.31%. Tianneng Power International's PB Ratio for the quarter that ended in Dec. 2025 was 0.42. Tianneng Power International's ROE % Adjusted to Book Value for the quarter that ended in Dec. 2025 was 17.40%.


Tianneng Power International ROE % Adjusted to Book Value Related Terms


Tianneng Power International ROE % Adjusted to Book Value Historical Data

* Premium members only.

The historical data trend for Tianneng Power International's ROE % Adjusted to Book Value can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Tianneng Power International ROE % Adjusted to Book Value Chart

Tianneng Power International Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
ROE % Adjusted to Book Value
Get a 7-Day Free Trial Premium Member Only Premium Member Only 19.50 19.90 24.27 16.83 20.79

Tianneng Power International Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
ROE % Adjusted to Book Value Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 23.96 29.67 6.33 25.05 17.40

TIANF vs ORLY, AZO: ROE % Adjusted to Book Value Comparison

For the Auto Parts subindustry, Tianneng Power International's ROE % Adjusted to Book Value, along with its competitors' market caps and ROE % Adjusted to Book Value data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


Tianneng Power International ROE % Adjusted to Book Value vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, Tianneng Power International's ROE % Adjusted to Book Value distribution charts can be found below:

* The bar in red indicates where Tianneng Power International's ROE % Adjusted to Book Value falls into.


TIANF
51GF Score
Tianneng Power International Ltd TIANF
ROE % Adjusted to Book Value is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tianneng Power International ROE % Adjusted to Book Value Calculation

Tianneng Power International's ROE % Adjusted to Book Value for the fiscal year that ended in Dec. 2025 is calculated as

ROE % Adjusted to Book Value=ROE % / PB Ratio
=8.73% / 0.42
=20.79%

Tianneng Power International's ROE % Adjusted to Book Value for the quarter that ended in Dec. 2025 is calculated as

ROE % Adjusted to Book Value=ROE % / PB Ratio
=7.31% / 0.42
=17.40%

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

What does a ROE % Adjusted to Book Value of 17.40% mean?
Tianneng Power International (TIANF) has a ROE % Adjusted to Book Value of 17.40% as of Dec. 2025. Return on equity adjusted to book is the ratio of return on equity to price-book ratio. View historical data on Tianneng Power International and its competitors.
Is Tianneng Power International's ROE % Adjusted to Book Value too high?
Tianneng Power International's current ROE % Adjusted to Book Value is 17.40%. Overall, Tianneng Power International has a GF Score™ of 51/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Tianneng Power International's ROE % Adjusted to Book Value compare to ORLY and AZO?
Tianneng Power International's ROE % Adjusted to Book Value of 17.40% can be compared against companies in the Vehicles & Parts industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good ROE % Adjusted to Book Value for a Vehicles & Parts company?
A good ROE % Adjusted to Book Value depends on the Vehicles & Parts industry context. However, ROE % Adjusted to Book Value should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high ROE % Adjusted to Book Value mean?
A high ROE % Adjusted to Book Value can signal that a stock is expensive relative to its fundamentals. Return on equity adjusted to book is the ratio of return on equity to price-book ratio. View historical data on Tianneng Power International and its competitors. Tianneng Power International's current ROE % Adjusted to Book Value is 17.40%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tianneng Power International stock overvalued right now?
Based on GuruFocus' analysis, Tianneng Power International (TIANF) is currently considered Fairly Valued. The stock's GF Value™ is $0.63, compared to a current price of $0.60 — trading 5.3% below its estimated fair value. The current ROE % Adjusted to Book Value is 17.40%. Tianneng Power International's overall GF Score™ is 51/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROE % Adjusted to Book Value calculated?
ROE % Adjusted to Book Value is calculated from a company's financial statements. For Tianneng Power International (TIANF), the current ROE % Adjusted to Book Value is 17.40% as of Dec. 2025. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Tianneng Power International (TIANF) Overvalued in 2026?

Based on GuruFocus' analysis, Tianneng Power International stock appears to be undervalued. The current stock price of $0.60 is trading 5.3% below its estimated GF Value™ of $0.63. GuruFocus considers Tianneng Power International to be Fairly Valued.

Key valuation signals for TIANF:

  • ROE % Adjusted to Book Value: 17.40%
  • GF Value™: $0.63 vs. price of $0.60 (5.3% below fair value)
  • GF Score™: 51/100 with 6 warning signs

No single metric tells the full story. See the TIANF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tianneng Power International Business Description

Other Exchanges 00819:Hong Kong
Address 18 Harbour Road, Suite 3202, 32nd Floor, Central Plaza, Wanchai, Hong Kong, HKG
Tianneng Power International Ltd is engaged in the manufacturing and sale of lead-acid battery products, lithium-ion battery products and recycled materials and trading of materials. It manufactures High-tech eco friendly battery, new energy batteries, and green and renewable materials. The company operates in two segments: Manufacturing business and Trading. The Manufacturing business segment generates the majority of the revenue. Geographically it operates in the PRC.
51GF Score

Get the complete analysis for TIANF

ROE % Adjusted to Book Value is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$0.60
Price
$0.63
GF Value