Siam Technic Concrete PCL (BKK:STECH) Effective Interest Rate on Debt %: 3.13% (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.

BKK:STECH Siam Technic Concrete PCL BKK:STECH
82 GF Score
Price ฿1.26
GF Value ฿1.38
Valuation Fairly Valued
! 2 Warning Signs
View Full Analysis

What is Siam Technic Concrete PCL Effective Interest Rate on Debt %?

Siam Technic Concrete PCL BKK:STECH -2.33% 82 Effective Interest Rate on Debt % is 3.13% as of Dec. 2025. GuruFocus rates BKK:STECH with a GF Score™ of 82/100 and a GF Value™ of ฿1.38 (Fairly Valued). The stock has 2 warning signs investors should review.

Effective Interest Rate on Debt % is the usage rate that a borrower actually pays on a debt. It is calculated as the positive value of Interest Expense divided by its average total debt. Total debt equals to Long-Term Debt & Capital Lease Obligation plus Short-Term Debt & Capital Lease Obligation. Siam Technic Concrete PCL's annualized positive value of Interest Expense for the quarter that ended in Dec. 2025 was ฿34 Mil. Siam Technic Concrete PCL's average total debt for the quarter that ended in Dec. 2025 was ฿1,080 Mil. Therefore, Siam Technic Concrete PCL's annualized Effective Interest Rate on Debt % for the quarter that ended in Dec. 2025 was 3.13%.


Siam Technic Concrete PCL  (BKK:STECH) Effective Interest Rate on Debt % Explanation

Effective Interest Rate on Debt % measures the usage rate that a borrower actually pays on a debt.


Siam Technic Concrete PCL Effective Interest Rate on Debt % Related Terms


Siam Technic Concrete PCL Effective Interest Rate on Debt % Historical Data

* Premium members only.

The historical data trend for Siam Technic Concrete PCL's Effective Interest Rate on Debt % 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.

Siam Technic Concrete PCL Effective Interest Rate on Debt % Chart

Siam Technic Concrete PCL Annual Data
Trend Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Effective Interest Rate on Debt %
Get a 7-Day Free Trial 3.03 2.51 2.67 4.17 3.43

Siam Technic Concrete PCL Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
Effective Interest Rate on Debt % 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 3.96 3.87 3.50 3.36 3.13

BKK:STECH vs CRH, VMC, MLM: Effective Interest Rate on Debt % Comparison

For the Building Materials subindustry, Siam Technic Concrete PCL's Effective Interest Rate on Debt %, along with its competitors' market caps and Effective Interest Rate on Debt % 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.


Siam Technic Concrete PCL Effective Interest Rate on Debt % vs Building Materials Industry

For the Building Materials industry and Basic Materials sector, Siam Technic Concrete PCL's Effective Interest Rate on Debt % distribution charts can be found below:

* The bar in red indicates where Siam Technic Concrete PCL's Effective Interest Rate on Debt % falls into.


BKK:STECH
82GF Score
Siam Technic Concrete PCL BKK:STECH
Effective Interest Rate on Debt % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Siam Technic Concrete PCL Effective Interest Rate on Debt % Calculation

Siam Technic Concrete PCL's annualized Effective Interest Rate on Debt % for the fiscal year that ended in Dec. 2025 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (A: Dec. 2024 )+Total Debt  (A: Dec. 2025 ))/ count )
=-1  *  -39.954/( (1285.508+1044.447)/ 2 )
=-1  *  -39.954/1164.9775
=3.43 %

where

Total Debt  (A: Dec. 2024 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=540.375 + 745.133
=1285.508

Total Debt  (A: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=399.875 + 644.572
=1044.447

Siam Technic Concrete PCL's annualized Effective Interest Rate on Debt % for the quarter that ended in Dec. 2025 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (Q: Sep. 2025 )+Total Debt  (Q: Dec. 2025 ))/ count )
=-1  *  -33.808/( (1116.506+1044.447)/ 2 )
=-1  *  -33.808/1080.4765
=3.13 %

where

Total Debt  (Q: Sep. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=442.571 + 673.935
=1116.506

Total Debt  (Q: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=399.875 + 644.572
=1044.447

* 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.

In the calculation of annual Effective Interest Rate on Debt %, the Interest Expense of the last fiscal year and the average total debt over the fiscal year are used. In calculating the quarterly data, the Interest Expense data used here is four times the quarterly (Dec. 2025) interest expense data. Effective Interest Rate on Debt % is displayed in the 30-year financial page.

What does a Effective Interest Rate on Debt % of 3.13% mean?
Siam Technic Concrete PCL (BKK:STECH) has a Effective Interest Rate on Debt % of 3.13% as of Dec. 2025. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Siam Technic Concrete PCL and its competitors.
Is Siam Technic Concrete PCL's Effective Interest Rate on Debt % too high?
Siam Technic Concrete PCL's current Effective Interest Rate on Debt % is 3.13%. Overall, Siam Technic Concrete PCL has a GF Score™ of 82/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Siam Technic Concrete PCL's Effective Interest Rate on Debt % compare to CRH and VMC?
Siam Technic Concrete PCL's Effective Interest Rate on Debt % of 3.13% can be compared against companies in the Building Materials industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Effective Interest Rate on Debt % for a Building Materials company?
A good Effective Interest Rate on Debt % depends on the Building Materials industry context. However, Effective Interest Rate on Debt % 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 Effective Interest Rate on Debt % mean?
A high Effective Interest Rate on Debt % can signal that a stock is expensive relative to its fundamentals. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on Siam Technic Concrete PCL and its competitors. Siam Technic Concrete PCL's current Effective Interest Rate on Debt % is 3.13%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Siam Technic Concrete PCL stock overvalued right now?
Based on GuruFocus' analysis, Siam Technic Concrete PCL (BKK:STECH) is currently considered Fairly Valued. The stock's GF Value™ is ฿1.38, compared to a current price of ฿1.26 — trading 8.7% below its estimated fair value. The current Effective Interest Rate on Debt % is 3.13%. Siam Technic Concrete PCL's overall GF Score™ is 82/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Effective Interest Rate on Debt % calculated?
Effective Interest Rate on Debt % is calculated from a company's financial statements. For Siam Technic Concrete PCL (BKK:STECH), the current Effective Interest Rate on Debt % is 3.13% 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 Siam Technic Concrete PCL (BKK:STECH) Overvalued in 2026?

Based on GuruFocus' analysis, Siam Technic Concrete PCL stock appears to be undervalued. The current stock price of ฿1.26 is trading 8.7% below its estimated GF Value™ of ฿1.38. GuruFocus considers Siam Technic Concrete PCL to be Fairly Valued.

Key valuation signals for BKK:STECH:

  • Effective Interest Rate on Debt %: 3.13%
  • GF Value™: ฿1.38 vs. price of ฿1.26 (8.7% below fair value)
  • GF Score™: 82/100 with 2 warning signs

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


Siam Technic Concrete PCL Business Description

Address Ngamwongwan Road, No. 50 Soi Ngam Wong Wan 47, Intersection 20, Thungsonghong Sub-district, Laksi District, Bangkok, THA, 10210
Siam Technic Concrete PCL is engaged in the manufacture of prestressed concrete products and construction contractor service. The firm has two reportable segments namely Sale of goods and services and Construction. The company generates the majority of its revenue from the Sale of goods and service segments. The Company is managed and operates principally in Thailand.
82GF Score

Get the complete analysis for BKK:STECH

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

฿1.26
Price
฿1.38
GF Value