About — SDR Drone Inc.

The Thesis

Drones, built by operators — for operators.

The hardest problems in unmanned aviation are not in the lab. They are in the field, in the rain, under jamming, with operators who need a platform that works the first time, every time.

Sundori was founded on a single conviction: a drone is a system, not a product. The flight controller, the communications stack, the integrated electronics, the swarm software, and the operator's training — all must be designed together, owned together, and improved together.

Across defense, public safety, and industrial operations, the Sundori platform is the result. Engineered in Korea. Validated in mission. Deployed across four continents. In June 2026, SDR Drone Inc. acquired the rights to it for every market outside Korea.

History

From airships to the defense standard.

The platform's story spans three eras at Sundori Drone Co., Ltd., each building the engineering, manufacturing, and operational foundation for the next. A fourth era begins with SDR Drone Inc.

1991 — 1993

First Commercial Unmanned Airships

First-to-market commercialization of unmanned airships for advertising and promotion. Over 100,000 cumulative flight hours built unparalleled operational expertise in Korean unmanned aviation.

1994 — 2009

Commercial Drone Platform

Technology proven through drones supplied to TV and film production. Entry into the agricultural mid-size drone market. First-generation commercial platform prototype completed.

2010 — Present

Defense Standard Platform

Sundori's platform is established as South Korea's standard defense training drone. Built on 30 years of in-house development, commercialization, and validated battlefield-grade engineering.

2026 — Present

SDR Drone Inc. · OTC: SDCO

Hallmark Venture Group, Inc., a Florida public company, buys the rights to the Sundori portfolio for every market outside Korea (June 9), is renamed SDR Drone Inc. (June 16), and starts trading as OTC: SDCO (July 16), with plans to produce the platform locally for the United States and allied markets.

Recognition

Recognized among Korea's core domestic contributors to defense drone development, Sundori Drone Co., Ltd. provides technical advisory input on national unmanned-systems policy and capability planning.

Sundori Drone Co., Ltd. · Government & Defense Engagement (Korea)

Positioning

What SDR is — and what it isn't.

SDR Drone Inc. occupies a distinct position: a U.S. public company that owns, outside Korea, a complete drone platform already proven by the largest user base of any Korean drone company.

Industry pattern

What SDR isn't.

Conventional drone businesses cannot deliver the operational depth required for defense and critical infrastructure.

A consumer drone company chasing volume
An assembly house importing foreign electronics
A software-only firm
A reseller of off-the-shelf platforms
A single-mission point solution

The SDR model

What SDR is.

An intellectual-property and licensing company that owns the entire platform outside Korea: hardware designs, firmware, communications, software, and the operator-training curriculum.

Rights-holder, outside Korea, to the standard training drone of the Korean armed forces
Owner of the SDR-ONE integrated flight-electronics design
Partnered with Sundori, a Korean government-certified innovative-product supplier
A multi-mission platform from tactical to industrial
A licensing and joint-venture business built on 30 years of Sundori engineering

Operating Principles

How we work.

Three principles shape every drone, every deployment, and every engagement.

01

Own the platform.

Flight control, electronics, communications, and software were designed in-house at Sundori and are owned by SDR Drone outside Korea. A Korean domestic supply chain keeps the platform independent of foreign black-box components.

02

Validate in mission.

Every platform is proven in real operational environments — emergency response, defense exercises, infrastructure protection — before it ships to a new market.

03

Train the operator.

10,000+ pilots trained through Sundori's certified curriculum in Korea. Drones are only as capable as the operators flying them — and the platform is designed for both.

04

Compound the system.

Every deployment, every operator hour, and every field iteration feeds back into the platform. The drone of 2026 is the product of three decades of compounding learning.

Built on three decades of unmanned flight.