Capabilities by domain | ТЕРЕМ-ХОЛДИНГ ЕАД

Capability

Civil Aviation

Civil Helicopters · Assemblies · Spare Parts

Repair and maintenance of civil Mi-series helicopters for private aviation operators.

Scope of services

CRR and life extension of Mi-8/17 helicopters
Base and intermediate repair of civil helicopters
Overhaul of Mi-series aviation assemblies
Technical servicing, storage and guarding of aircraft
Spare parts production per client documentation
Rubber technical products — hermetic valves, seals for hydraulic, oil and fuel assemblies, high-pressure hoses
Metal spare parts for aircraft
Galvanic coatings — protective and decorative coatings with laboratory quality control
Technical assistance and training

Responsible subsidiary

TEREM-Letets EOOD

📍 Sofia

Certifications

✓ ISO 9001:2015 ✓ ISO 14001:2015 ✓ BDS EN ISO 45001:2023 View subsidiary → Send enquiry →

Capability

Ship Repair

Merchant Ships · Dock Repair · Systems & Equipment

Comprehensive repair of merchant ships — from dock and class servicing to full system modernisation. Two floating docks (8,000 t and 2,200 t), three rail slipways and specialised workshops with direct Black Sea access. The process includes precision CNC machining and galvanic coatings of ship components, carried out by the group's own manufacturing base.

Scope of services

Dock, class and emergency repair of all civilian vessels and submarines
Modernisation and conversion of merchant ships
Merchant ship conversion — ballast water treatment systems
All hull and pipe work; tank and hull cleaning; blasting SA-2.5; painting with all paint types
Repair of main and auxiliary diesel engines, steam turbines, compressors, pumps, heat exchangers and boilers
Repair of tail shafts, shafting, bow thrusters, steering gear and azimuth thrusters
Electrical, hydraulic and pneumatic machinery, assemblies and system repair
Repair of instrumentation, electronic devices and systems
Repair of radar stations, navigation and sonar equipment

Responsible subsidiary

TEREM-KRZ Flotski Arsenal-Varna EOOD

📍 Varna

Certifications

✓ ISO 9001:2015 ✓ ISO 14001:2015 ✓ BDS EN ISO 45001:2023 ✓ NATO AQAP 2110 View subsidiary → Send enquiry →

Capability

Industrial Services

Metalworking · Galvanic Coatings · Weapons Repair

Specialised manufacturing and service capabilities for external clients — precision metalworking, protective coatings and technical services, drawing on the group's long-standing industrial capacity.

Precision Metalworking

CNC machining centres — prismatic parts up to 700×700×800mm
Turning to Ø1000mm; milling, grinding, honing
EDM (electrical discharge machining) of metal parts
Gears, shafts, axles, bushings, gearboxes
Forging shop — hammers 1–10 t; press 2500 t
Heat treatment — hardening, nitrocarburising, protective atmosphere
Design and production of custom non-standard equipment per documentation
Tooling and part manufacture per client documentation

Galvanic Coatings

Chrome, nickel, nickel-chrome, zinc and cadmium plating
Tin and lead plating
Anodising and pickling of aluminium
Oxidation and phosphating of steel
Powder coating
Shot blasting of metal parts and rims

Weapons Repair & Technical Services

Repair of hunting and personal firearms mechanics
Removal of rust, scratches and pitting from steel parts
Refurbishment of wooden stocks — sanding, varnishing, impregnation
Installation of quick sights and high-visibility aiming devices
Test firing at in-house shooting range
Inspection and certification of firearms and fire extinguishers
Chemical analysis of metals
Fault detection and repair of levels and theodolites

Responsible subsidiary

TEREM-Ivaylo EOOD · TEREM-Han Krum EOOD · TEREM-Letets EOOD

📍 Veliko Tarnovo / Targovishte / Sofia

Certifications

✓ ISO 9001:2015 ✓ ISO 14001:2015 ✓ BDS EN ISO 45001:2023 ✓ NATO AQAP 2110 View subsidiary → Send enquiry →

Capability

Commercial Products

Gas Equipment · Agricultural Machinery · Commercial Explosives · Warehouse Equipment

Commercial products from two subsidiaries — TEREM-Ivaylo EOOD manufactures gas equipment and agricultural machinery; TEREM-Tsar Samuil EOOD produces commercial explosives, detonators, suppressors and warehouse handling equipment.

Scope of services

Household gas cookers
Low-pressure valves for gas cookers
Milking units for cows, sheep and goats
Feed mills
Commercial explosives
Intermediate detonators — cast production
Weapon suppressors
Warehouse trolleys

Responsible subsidiary

TEREM-Ivaylo EOOD + TEREM-Tsar Samuil EOOD

📍 Veliko Tarnovo / Kostenets

Certifications

✓ ISO 9001:2015 ✓ ISO 14001:2015 ✓ BDS EN ISO 45001:2023 View subsidiary → Send enquiry →

Capability

Specialised Structures

Containers · Armoured Rooms · Superstructures · Ground Equipment

Design and production of specialised metal structures — from 20ft transport containers to armoured cash-in-transit vehicles and aircraft ground support equipment.

Scope of services

20ft transport containers for various purposes
Stationary and mobile armoured rooms
Armoured cash-in-transit vehicle conversions
Automotive superstructures — medical, workshop, oil processing
Aircraft ground support equipment
Cabinet furniture and PVC windows

Responsible subsidiary

TEREM-Han Krum EOOD (Ovech facility)

📍 Provadia

Certifications

✓ ISO 9001:2015 ✓ ISO 14001:2015 ✓ BDS EN ISO 45001:2023 ✓ NATO AQAP 2110 View subsidiary → Send enquiry →