Overview of Business Operation

QTC Energy Public Company Limited engages in the business of manufacturing and distributing transformers according to orders of domestic and international customers (Made to Order) under the "QTC" trademark and the customers’ trademarks. The company also provides transformer repair and maintenance services:

Transformer Business

The Company's transformer products can be divided into the following categories:

1. Distribution Transformer
   1.1 Hermetically Sealed Oil Type Distribution Transformer
   1.2 Open Type with Conservator
2. Power Transformer
3. Cast Resin Transformer
4. Super Low Loss Transformer (Amorphous Metal Distribution Transformer: AMDT)
5. Special Transformer is designed and manufactured according to customer requirements and applications, such as Earthing Transformer, Unit Substation, Pad mounted, etc.
6. Providing various services to customers, such as scheduled inspection and maintenance of general conditions, repairs and maintenance of transformers, transformer oil filling service, transformer rental service, etc., to support the needs of customers and facilitate them, including customers purchasing QTC transformers and general customers.

Currently, the company has expanded its business through subsidiaries and joint ventures as follows:

1. QTC Global Power Company Limited (QTC GP), a subsidiarycompany,engages in the business of power generation and other types of energy, established on September 28, 2016, with the registered capital of 501.90 million Baht, 100% held by QTC Energy Public Company Limited

1. 1.1 Q Solar 1 Company Limited (Q Solar 1) is a subsidiary of QTC Global Power Company Limited (QTC GP), which engages in the business of solar power generation and was established on December 28, 2009, with the registered capital of 220 million Baht. QTC Global Power Company Limited acquired 100% of shares on September 20, 2017.
2. 1.2 QTC ESS Company Limited (QTC ESS) is a subsidiary of QTC Global Power Company Limited (QTC GP). The Company was established on 9 June 2025 with a registered capital of 14 million Baht, of which QTC GP holds a 60% equity stake. QTC ESS engages in the distribution of Battery Energy Storage Systems (BESS) and supports the provision of comprehensive alternative energy solutions.
3. 1.3 QTMC Company Limited (QTMC) is a subsidiary of QTC Global Power Company Limited (QTC GP). The Company was established on 16 October 2025 with a registered capital of 15 million baht, in which QTC GP holds a 51% equity stake. QTMC operates a business in the manufacturing and distribution of dry-type cast resin transformers.

2. QTC RE Company Limited (QTC RE), a subsidiary company(formerly known as “QTC Marketing Company Limited”), was established on November 10, 2021 with a registered capital of 40 million baht, 100% held by QTC Energy Public Company Limited, Engaged in the design, contracting, installation, investment, and distribution of products related to solar power generation systems and charging systems, as well as other products associated with renewable energy and various energy sectors.

3. QTC EV Company Limited (QTC EV), a subsidiarycompany, was established on April 29, 2024 with a registered capital of 10million baht, 60% held by QTC Energy Public Company Limited,perates in the electric vehicle (EV) energy sector. Currently, it has pened two charging stations, located at ICD Ladkrabang in Bangkok and Laem Chabang Port in Chonburi Province. These stations support electric tractor heads, heavy-duty electric trucks, electric buses, as well as private electric vehicles.

4. PPWE Company Limited, a joint venture company, was established on January 12, 2016, with a registered capital of 40 million baht, 50% held by QTC Energy Public Company Limited and 50% by UAC Energy Company Limited, engaging in energy business. Currently, the company has 4electric charging stations:

1. Caltex Gas Station, Sri Palang, Nakhon Ratchasima Province
2. Caltex Gas Station, Wipat Rungruang, Nakhon Ratchasima Province
3. Caltex Gas Station, Tha Mai, Chanthaburi Province
4. Caltex Gas Station, Phra Nakhon Si Ayutthaya Province

Currently, the company has expanded its business through subsidiaries and joint ventures as folPolicy and Long-Term Goals of Business Operation

The Company has the policy and goal to be a world-class manufacturer of high-quality transformers by focusing on the development of the quality and standards of the Company's transformers to produce transformers with high efficiency and build confidence and recognition from domestic and international customers. The Company sets the goal of generating revenues of 2,000 million Baht by 2028. To achieve such goal, the Company focuses on maintaining the existing customer base and expand the new customer base, especially in the ASEAN countries.

The Company has improved the production processes to be more efficient in order to support market expansion and competition and also increased international sales team to penetrate new markets. Regarding the research and development, the Company unceasingly discovers and develops new products to meet customers’ needs. Currently, the Company develops and produces Smart Transformer, which is the innovation of transformers, and Super Low Loss Transformer that saves energy and reduces global warming in order to meet the needs of all groups of customers. As a result, the Company has strong potential for market competition.

The Company realizes the stability and sustainability of the organization so it expands the business to the energy business and seeks for domestic and international business opportunities in order to build a strong foundation. This includes investments in alternative power plants, along with continued business expansion into 2026, Currently, there are many projects that the Company is studying feasibility. In addition, the Company also expanded its business to be the distributor of energy-related products, such as solar panels and inverters, and other products that the Company is looking for future growth opportunities.

Since the Company emphasizes on valuable human resources, we invest in human resources with emphasis on development under Human Capital Guidelines for developing personnel to connect with organizational strategies in order to obtain competitive competency in world market. The company always adjusts its organizational structure and strategies to keep up with the current situations, for example, adjusted sales process and production process for cost reduction, improved debt collection process to be consistent with current economic condition, situations or crises. With promptness of personnel and technology, the Company gained competitive advantages and built the ultimate satisfaction for our customers on organizational management in order to achieve our goals as mentioned above. The Company attached to the principle of business operation under the concept of “Quality of Details” as well as the principles of Good Governance and Business Ethics for sustainable growth.