Tianyi Water Energy Solutions (ROCO:4530) Tax Rate %: 25.33% (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.

ROCO:4530 Tianyi Water Energy Solutions Inc ROCO:4530
63 GF Score
Price NT$25.45
GF Value NT$41.29
Valuation Possible Value Trap
! 1 Warning Sign
View Full Analysis

What is Tianyi Water Energy Solutions Tax Rate %?

Tianyi Water Energy Solutions ROCO:4530 -5.57% 63 Tax Rate % is 25.33% as of Dec. 2025. GuruFocus rates ROCO:4530 with a GF Score™ of 63/100 and a GF Value™ of NT$41.29 (Possible Value Trap). The stock has 1 warning sign investors should review.

Tax Rate % is calculated as Tax Expense divided by its Pre-Tax Income. Tianyi Water Energy Solutions's Tax Expense for the three months ended in Dec. 2025 was NT$9.3 Mil. Tianyi Water Energy Solutions's Pre-Tax Income for the three months ended in Dec. 2025 was NT$36.8 Mil. Therefore, Tianyi Water Energy Solutions's Tax Rate % for the quarter that ended in Dec. 2025 was 25.33%.

Tianyi Water Energy Solutions Tax Rate % Related Terms

Tianyi Water Energy Solutions Tax Rate % Historical Data

* Premium members only.

The historical data trend for Tianyi Water Energy Solutions's Tax Rate % 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.

Tianyi Water Energy Solutions Tax Rate % Chart

Tianyi Water Energy Solutions Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Tax Rate %
Get a 7-Day Free Trial Premium Member Only Premium Member Only -10.11 -41.02 -2.87 26.02 27.23

Tianyi Water Energy Solutions Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
Tax Rate % 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 -14.85 4,468.57 24.70 30.40 25.33
ROCO:4530
63GF Score
Tianyi Water Energy Solutions Inc ROCO:4530
Tax Rate % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tianyi Water Energy Solutions Tax Rate % Calculation

Tax Rate % is the ratio of tax expense divided by pretax income, usually presented in percent.

Tianyi Water Energy Solutions's Tax Rate % for the fiscal year that ended in Dec. 2025 is calculated as

Tax Rate %=Tax Expense (A: Dec. 2025 )/Pre-Tax Income (A: Dec. 2025 )
=16.927/62.17
=27.23 %

Tianyi Water Energy Solutions's Tax Rate % for the quarter that ended in Dec. 2025 is calculated as

Tax Rate %=Tax Expense (Q: Dec. 2025 )/Pre-Tax Income (Q: Dec. 2025 )
=9.327/36.829
=25.33 %

* 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.

Frequently Asked Questions Learn more about Tax Rate % →
What does a Tax Rate % of 25.33% mean?
Tianyi Water Energy Solutions (ROCO:4530) has a Tax Rate % of 25.33% as of Dec. 2025.
Is Tianyi Water Energy Solutions' Tax Rate % too high?
Tianyi Water Energy Solutions' current Tax Rate % is 25.33%. Overall, Tianyi Water Energy Solutions has a GF Score™ of 63/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Tianyi Water Energy Solutions' Tax Rate % compare to CRS and ATI?
Tianyi Water Energy Solutions' Tax Rate % of 25.33% can be compared against companies in the Industrial Products industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Tax Rate % for an Industrial Products company?
A good Tax Rate % depends on the Industrial Products industry context. However, Tax Rate % 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 Tax Rate % mean?
A high Tax Rate % can signal that a stock is expensive relative to its fundamentals. Tianyi Water Energy Solutions's current Tax Rate % is 25.33%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tianyi Water Energy Solutions stock overvalued right now?
Based on GuruFocus' analysis, Tianyi Water Energy Solutions (ROCO:4530) is currently considered Possible Value Trap. The stock's GF Value™ is NT$41.29, compared to a current price of NT$25.45 — trading 38.4% below its estimated fair value. The current Tax Rate % is 25.33%. Tianyi Water Energy Solutions' overall GF Score™ is 63/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Tax Rate % calculated?
Tax Rate % is calculated from a company's financial statements. For Tianyi Water Energy Solutions (ROCO:4530), the current Tax Rate % is 25.33% 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 Tianyi Water Energy Solutions (ROCO:4530) Overvalued in 2026?

Based on GuruFocus' analysis, Tianyi Water Energy Solutions stock appears to be undervalued. The current stock price of NT$25.45 is trading 38.4% below its estimated GF Value™ of NT$41.29. GuruFocus considers Tianyi Water Energy Solutions to be Possible Value Trap.

Key valuation signals for ROCO:4530:

  • Tax Rate %: 25.33%
  • GF Value™: NT$41.29 vs. price of NT$25.45 (38.4% below fair value)
  • GF Score™: 63/100 with 1 warning sign

No single metric tells the full story. See the ROCO:4530 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

Tianyi Water Energy Solutions Business Description

Address Sec. 2, Chang\'an E. Road, 12th Floor-4, No. 112, Zhongshan Dist, Taipei, TWN, 104
Honyi International Co Ltd is engaged in processing and trading of metal forging, treatment of wastewater and sewage, wholesale of industrial additives, and construction of environmental protection engineering projects. Its segments include catering segment, metal forging and processing segment, environmental engineering segment, and other segments. The majority of the revenue is derived from the environmental engineering segment.
63GF Score

Get the complete analysis for ROCO:4530

Tax Rate % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$25.45
Price
NT$41.29
GF Value