• SDR Drone’s common technology architecture supports 13 production platforms across eight application domains, from tactical operations and wildfire surveillance to agriculture and heavy-lift logistics
• The SDR-ONE integrated motherboard combines flight control, controllers, and communications on a single circuit board, reducing component count by 40% and production cost by roughly 30% against discrete-board designs
• Developed over three decades by South Korea-based Sundori Drone, the technology serves programs across the Korean Army, Navy, Air Force, Police, and Fire Department and has trained more than 10,000 pilots

The commercial and defense drone market is expanding quickly. South Korea alone has redirected roughly KRW 3.3 trillion (about $2.14 billion) once earmarked for attack-helicopter programs toward drone procurement and authorized an additional $2.4 billion for drone-related spending. Yet much of the industry still treats unmanned aircraft as single-purpose machines. One platform is built for surveillance, another for mapping, a third for cargo, and each new mission can demand a different airframe, communications package, and control system. The result is fragmented fleets that grow harder and costlier to operate at scale. SDR Drone, Inc. (f.k.a. Hallmark Venture Group Inc. (OTC: HLLK), approaches the problem from the opposite direction, advancing a common technology architecture that moves across missions by changing payload and software rather than rebuilding the aircraft. Developed over more than three decades by South Korea-based Sundori Drone, the platform spans 13 production models across eight application domains.

One Architecture Behind Every Aircraft

At the center of the platform is the SDR Multi Flight Control System, an AI-enabled architecture that supports autonomous operation, formation flight, collision avoidance, and coordinated fleets. Leader-follower tracking and one-touch controls put multiple aircraft into W, V, I, and custom patterns while real-time path planning reroutes around obstacles. The SDR-ONE motherboard applies the same logic to hardware, combining flight control, controllers, and communications on a single circuit board instead of spreading them across discrete parts. That consolidation removes roughly 40% of the components a conventional design requires and cuts production cost by about 30%. Communications run over a Flying Ad-hoc Network in which each drone relays communications for the others, extending operations beyond conventional ground-link limitations, with KCMVP-certified encryption and frequency-hopping countermeasures for contested airspace and fully domestic component sourcing for supply-chain security. Together these systems form the common layer that lets one platform shift between missions.

From Refinery Perimeters to Wildfire Lines

For critical-infrastructure operators, tethered platforms hold stations roughly 100 meters above refineries, substations, pipelines, and port perimeters, streaming continuous high-resolution and thermal imagery while drawing power through the tether, and a full site fleet runs from one ground-control station. Change the mission package and the same architecture becomes wildfire surveillance. Long-endurance aircraft fly pre-programmed routes, electro-optical and infrared sensors pick up heat signatures and smoke while a fire is still small, and detections downlink to fire authorities with live coordinates, with VTOL endurance reaching ten hours. Search and rescue apply it differently, using thermal sensors to find body heat through darkness and undergrowth and searchlight payloads for night operations. In disaster response, crews stream live imagery to incident command, map damage through photogrammetry, and hold 24-hour tethered overwatch above zones cut off from the ground.

The Same Airframe Goes to Work

The commercial side runs on the same stack. Smart-farm operations coordinate spraying, multispectral crop sensing, and yield mapping across multiple aircraft flown by a single operator, scaling from one parcel to a regional cooperative, an approach already demonstrated in multi-drone formation farming in South Korea. In logistics, heavy-lift platforms carry payloads up to 40 kilograms to remote, island, and mountain sites that trucks and helicopters reach only at high cost, and the same airframes swap in LiDAR and photogrammetry sensors to inspect pipelines, transmission lines, and large survey areas. The point is not that SDR sells several drones. It is that one flight-control, avionics, and communications layer underlies all of them, so an improvement to the SDR-ONE board, the control software, or the mesh network propagates across the entire portfolio rather than staying trapped in a single product.

Defense Pedigree, Not a Blank Sheet

The same architecture carries tactical ISR, loitering strike, resupply, and swarm-coordinated operations, and it arrives with an operating history most early-stage competitors cannot match. Built through more than three decades of engineering at Sundori Drone, the technology supports government-approved training programs serving the Korean Army, Navy, and Air Force, as well as Police and Fire Department operators. Those training platforms hold roughly 70% of the Korean Army training-drone market, more than 10,000 pilots have qualified through the training ecosystem, and the fleet has flown over 500 field missions. Hallmark is a newly formed commercialization vehicle, but the engineering underneath it does not start from a blank sheet.

A Different Way to Scale a Drone Company

The former company, Hallmark Venture Group, acquired worldwide rights to the Sundori technology portfolio in June 2026, including trade secrets, manufacturing know-how, software, AI models, and the innovations behind twelve Korean patents. Now renamed SDR Drone Inc., the company is targeting defense, public-safety, and industrial markets across the United States and allied jurisdictions through licensing, partnerships, and technology-transfer programs. The premise is a single engineering decision: integrate the core architecture once, then adapt the mission through payload and software. In a market increasingly shaped by swarm operations, secure communications, sovereign supply chains, and demand well beyond defense, that model gives SDR exposure across sectors without treating every application as a new aircraft program. From a refinery perimeter to a wildfire line to contested airspace, the mission changes. The architecture underneath does not.

For more information, visit www.SDRDrone.com. 

NOTE TO INVESTORS: The latest news and updates relating to HLLK are available in the company’s newsroom at https://ibn.fm/HLLK

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