| HVAC & Refrigeration Heat Exchangers | Manufactures fin and tube heat exchangers including condenser coils, evaporator coils, and fluid coils for HVAC&R. | In-house manufacturing, advanced coating technology, strong client relationships, quality certifications, and export approvals. | B2B sales to HVAC equipment manufacturers, industrial clients, transport cooling and refrigeration firms. | Custom coated and specialized heat exchangers with advanced coatings command higher margins. | 42985 | 97 | Revenue from product sales to OEMs and industrial clients, including exports. | Direct sales with customized pricing based on product specification and volume. | Growth in HVAC sector, urbanization, government initiatives, and export market expansion drive segment growth. | |
| Subsidiary Operations and Training Services | Thermotech Research Laboratory offers HVAC&R testing and training; KRN HVAC Products Pvt Ltd focuses on bus AC heat exchangers. | Access to testing technology, industry certifications, and integration with core heat exchanger manufacturing business. | B2B customers in transport cooling and HVAC sectors; support for industry development through training. | Training and specialized HVAC product lines have higher margin potential. | 1285 | 3 | Sales of specialized HVAC products and fees for training/testing services through subsidiaries. | Product sales and service fees; included in consolidated revenue. | Expansion in transport cooling business and HVAC technology training services. | |
