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Union Plastic PCLBKK:UP 66 WACC % is 5.93% as of Jul. 14, 2026, which is 60% above its 10-year median of 3.71. GuruFocus rates BKK:UP with a GF Score™ of 66/100 and a GF Value™ of ฿16.77 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 1,341 Vehicles & Parts companies, Union Plastic PCL ranks better than 67.41% on this metric.
As of today (2026-07-14), Union Plastic PCL's weighted average cost of capital is 5.93%%. Union Plastic PCL's ROIC % is -2.58% (calculated using TTM income statement data).
Union Plastic PCL earns returns that do not match up to its cost of capital. It will destroy value as it grows.
For a comprehensive WACC calculation, please access the WACC Calculator.
Union Plastic PCL (BKK:UP) WACC % Explanation
Because it costs money to raise capital. A firm that generates higher ROIC % than it costs the company to raise the capital needed for that investment is earning excess returns. A firm that expects to continue generating positive excess returns on new investments in the future will see its value increase as growth increases, whereas a firm that earns returns that do not match up to its cost of capital will destroy value as it grows.
As of today, Union Plastic PCL's weighted average cost of capital is 5.93%%. Union Plastic PCL's ROIC % is -2.58% (calculated using TTM income statement data).
Union Plastic PCL earns returns that do not match up to its cost of capital. It will destroy value as it grows.
Be Aware
1. GuruFocus uses book value of debt (D) to do the calculation. It is simplified by adding latest one-year quarterly average Short-Term Debt & Capital Lease Obligation and Long-Term Debt & Capital Lease Obligation together.
For companies that report quarterly, GuruFocus combines all of the most recent year's quarterly debt data from the beginning of the year to the year-end and calculates the average.
For companies that report semi-annually, GuruFocus combines all of the most recent year's semi-annual debt data from the start of the year to the year-end and calculates the average.
For companies that report annually, GuruFocus combines the beginning and ending annual debt data from the most recent year and then calculates the average.
2. The WACC formula discussed above does not include Preferred Stock. Please adjust if preferred stock is considered.
3. (Expected Return of the Market - Risk-Free Rate of Return) is also called market premium. GuruFocus requires market premium to be 6%.
4. GuruFocus uses the latest TTM Interest Expense divided by the latest one-year quarterly average debt to get the simplified cost of debt.
Related Terms
Union Plastic PCL WACC % Historical Data
* Premium members only.
The historical data trend for Union Plastic PCL's WACC % 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.
For the Auto Parts subindustry, Union Plastic PCL's WACC %, along with its competitors' market caps and WACC % 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.
Union Plastic PCL WACC % vs Vehicles & Parts Industry
For the Vehicles & Parts industry and Consumer Cyclical sector, Union Plastic PCL's WACC % distribution charts can be found below:
* The bar in red indicates where Union Plastic PCL's WACC % falls into.
The weighted average cost of capital (WACC) is the rate that a company is expected to pay on average to all its security holders to finance its assets. The WACC is commonly referred to as the firm's cost of capital. Generally speaking, a company's assets are financed by debt and equity. WACC is the average of the costs of these sources of financing, each of which is weighted by its respective use in the given situation. By taking a weighted average, we can see how much interest the company has to pay for every dollar it finances.
WACC
=
E
/
(E + D)
*
Cost of Equity
+
D
/
(E + D)
*
Cost of Debt
*
(1 - Tax Rate)
1. Weights:
Generally speaking, a company's assets are financed by debt and equity. We need to calculate the weight of equity and the weight of debt.
The market value of equity (E) is also called "Market Cap". As of today, Union Plastic PCL's market capitalization (E) is ฿590.000 Mil.
The market value of debt is typically difficult to calculate, therefore, GuruFocus uses book value of debt (D) to do the calculation. It is simplified by adding the latest one-year quarterly average Short-Term Debt & Capital Lease Obligation and Long-Term Debt & Capital Lease Obligation together. As of Mar. 2026, Union Plastic PCL's latest one-year quarterly average Book Value of Debt (D) is ฿1.8034 Mil.
a) weight of equity = E / (E + D) = 590.000 / (590.000 + 1.8034) = 0.997
b) weight of debt = D / (E + D) = 1.8034 / (590.000 + 1.8034) = 0.003
2. Cost of Equity:
GuruFocus uses Capital Asset Pricing Model (CAPM) to calculate the required rate of return. The formula is:
Cost of Equity = Risk-Free Rate of Return + Beta of Asset * (Expected Return of the Market - Risk-Free Rate of Return)
a) GuruFocus uses 10-Year Treasury Constant Maturity Rate as the risk-free rate. It is updated daily. The current risk-free rate is 4.575%. Please go to Economic Indicators page for more information. Please note that we use the 10-Year Treasury Constant Maturity Rate of the country/region where the company is headquartered. If the data for that country/region is not available, then we will use the 10-Year Treasury Constant Maturity Rate of the United States as default.
b) Beta is the sensitivity of the expected excess asset returns to the expected excess market returns. Union Plastic PCL's beta is 0.2252.
c) (Expected Return of the Market - Risk-Free Rate of Return) is also called market premium. GuruFocus requires market premium to be 6%.
Cost of Equity = 4.575% + 0.2252 * 6% = 5.9262%
3. Cost of Debt:
GuruFocus uses latest TTM Interest Expense divided by the latest one-year quarterly average debt to get the simplified cost of debt.
As of Mar. 2026, Union Plastic PCL's interest expense (positive number) was ฿0.116 Mil. Its total Book Value of Debt (D) is ฿1.8034 Mil.
Cost of Debt = 0.116 / 1.8034 = 6.4323%.
4. Multiply by one minus TTM Tax Rate:
GuruFocus uses the most recent TTM Tax Expense divided by the most recent TTM Pre-Tax Income to calculate the tax rate. The calculated TTM tax rate is limited to between 0% and 100%. If the calculated tax rate is higher than 100%, it is set to 100%. If the calculated tax rate is less than 0%, it is set to 0%.
The latest calculated TTM Tax Rate = 0 / 64.545 = 0%.
Union Plastic PCL's Weighted Average Cost Of Capital (WACC) for Today is calculated as:
WACC
=
E / (E + D)
*
Cost of Equity
+
D / (E + D)
*
Cost of Debt
*
(1 - Tax Rate)
=
0.997
*
5.9262%
+
0.003
*
6.4323%
*
(1 - 0%)
=
5.93%
* 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.
Union Plastic PCL (BKK:UP) has a WACC % of 5.93% as of Jul. 14, 2026. The weighted average cost of capital (WACC) is the average rate a company pays to finance assets. View historical data on Union Plastic PCL and its competitors. This is 60% above median its historical median of 3.71. According to the industry distribution chart, Union Plastic PCL ranks #437 out of 1341 companies in the Vehicles & Parts industry, placing it in the top 32.6%.
Is Union Plastic PCL's WACC % too high?
Union Plastic PCL's current WACC % of 5.93% is 60% above median its 10-year median of 3.71. The Vehicles & Parts industry median WACC % is 8.59. Union Plastic PCL's value of 5.93% is 31% below this industry median. Based on the distribution chart, Union Plastic PCL ranks #437 out of 1341 companies in the Vehicles & Parts industry, which is above the industry midpoint. Overall, Union Plastic PCL has a GF Score™ of 66/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Union Plastic PCL's WACC % compare to ORLY and AZO?
According to the Vehicles & Parts industry distribution chart, Union Plastic PCL ranks #437 out of 1341 companies for WACC %. This puts Union Plastic PCL in the upper half of its industry. The industry median WACC % is 8.59. Union Plastic PCL's value of 5.93% is 31% below this benchmark. While the company's 10-year median is 3.71 vs. the industry median of 8.59, Union Plastic PCL has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good WACC % for a Vehicles & Parts company?
The median WACC % among Vehicles & Parts companies is 8.59, based on 1,341 companies in the industry. Companies in the top quartile (top 25%) have a WACC % significantly above this median, while those in the bottom quartile fall well below. However, WACC % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Union Plastic PCL's current WACC % of 5.93% is 31% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high WACC % mean?
A high WACC % can signal that a stock is expensive relative to its fundamentals. The weighted average cost of capital (WACC) is the average rate a company pays to finance assets. View historical data on Union Plastic PCL and its competitors. For the Vehicles & Parts industry, the median WACC % is 8.59 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Union Plastic PCL's current WACC % is 5.93%, which is 60% above median its own 10-year median of 3.71. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Union Plastic PCL stock overvalued right now?
Based on GuruFocus' analysis, Union Plastic PCL (BKK:UP) is currently considered Significantly Overvalued. The stock's GF Value™ is ฿16.77, compared to a current price of ฿23.60 — trading 40.7% above its estimated fair value. The current WACC % is 5.93%, which is 60% above median its 10-year median of 3.71 and 31% below the Vehicles & Parts industry median of 8.59. Union Plastic PCL's overall GF Score™ is 66/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is WACC % calculated?
WACC % is calculated from a company's financial statements. For Union Plastic PCL (BKK:UP), the current WACC % is 5.93% as of Jul. 14, 2026. 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 Union Plastic PCL (BKK:UP) Overvalued in 2026?
Based on GuruFocus' analysis, Union Plastic PCL stock appears to be overvalued.
The current stock price of ฿23.60 is trading 40.7% above its estimated GF Value™ of ฿16.77.
GuruFocus considers Union Plastic PCL to be Significantly Overvalued.
Key valuation signals for BKK:UP:
WACC %: 5.93% (60% above median its 10-year median of 3.71)
GF Value™: ฿16.77 vs. price of ฿23.60 (40.7% above fair value)
Industry Position: 31% below the Vehicles & Parts median (#437 of 1341)
No single metric tells the full story. See the BKK:UP stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Union Plastic PCL is engaged in the manufacturing and distribution of thermoplastics. The company is also involved in the contract manufacture and repair of molds. The reportable segments of company are Manufacture and distribution of thermoplastics and Contract manufacture and repair of molds. The group generates a majority of its revenue from the manufacture and distribution of thermoplastics business.
66GF Score
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