
ADOMS BUSAN OFFICEChange of flag to Antigua & Barbuda, handled in Busan.
The ADOMS Busan Office is the regional office of the Antigua & Barbuda Department of Marine Services and Merchant Shipping (ADOMS) for the Republic of Korea and Japan, operated by SolarisTech Inc.
A full service office for the flag: registration and change of flag, mortgages, certificates, seafarer documents, flag State inspections, ISM, ISPS and MLC audits and newbuilding work, all handled through Busan for owners and managers in Korea and Japan. ADOMS maintains regulatory oversight and flag State responsibility from its headquarters in Antigua & Barbuda, and registration of each vessel is subject to acceptance by the Administration.
The Antigua & Barbuda flag, from an office in Busan
In a change of flag, the new register has to open, the old one has to close, the mortgage has to follow, the crew's documents have to be in place and the certificates have to be aboard before she sails. The ADOMS Busan Office handles the Antigua & Barbuda side of each step for the Administration and works with the owner and the previous registry on the rest.

Registration and provisional registration
Provisional registration can be issued, once the Administration accepts the application, so the vessel can trade while permanent registration completes. The vessel's certificates are handled in Busan.
Mortgage registration
Where the vessel is financed and permanently registered, the mortgage is recorded in the new register as part of the transfer, with the filing coordinated with the lender and its counsel. Priority runs strictly by the time and date of recording.
Crew documents
Endorsements, Seafarer's Books and other crew documents for owners, managers and manning agents across the region, handled in Busan.
Inspections and audits
Flag State inspections and ISM, ISPS and MLC audits are arranged through the ADOMS Busan Office around the vessel's trading pattern.
Why owners choose this flag
- Preferential rate for ship tonnage dues in Chinese ports, approximately 28 percent below the general rate, applying from 8 June 2024 to 7 June 2029.
- Paris MoU White List and Tokyo MoU High Performance List, the top tier of both regimes.
- All six MARPOL Annexes, the Ballast Water Management Convention and MLC 2006 in force.
- A published sanctions regime with deregistration powers.
- A register that has grown in gross tonnage and in number of ships in each of the last three years.
Paris MoU performance list valid to 6 July 2027. Tokyo MoU performance list valid to 30 June 2027. Tonnage dues: PRC Ministry of Finance Notice Cai Guan Shui [2024] No. 24. Register growth: UNCTADstat, merchant fleet by flag of registration, 1 January 2023 to 1 January 2026.

Tell us the vessel, her current flag and the date you need her on the new register, and the office will come back with the document list and an indicative timetable, which depends on the documents and on the Administration's acceptance.
Compliance, MadeDecisive.
SolarisTech puts senior survey, audit and newbuilding judgment behind the Nautilux AI platform, so owners, charterers, underwriters and lenders can see what the record shows and act on it.
ONE PARTNER, THREE PILLARS
Intelligence, Training and Judgment,Working as One.
Nautilux flags risk in your own record. SwiftAction assigns the course written for that deficiency code. Our founder attends when the job needs someone on board. Compliance becomes a system instead of a scramble before every inspection.
MARINE & OFFSHORE CONSULTING
Consulting, Led From the Top.
From the core conventions through newbuilding, sale and purchase and offshore oil and gas: senior consulting across the vessel lifecycle.
THE NAUTILUX AI™ PLATFORM
Compliance Intelligence,Fleet-Wide.
Nautilux turns the audits, inspections, certificates and photographs you already hold into a picture of risk and readiness, with records logged and time-stamped so a finding can be evidenced later.
- CCI, ARPI and SESI, our fleet indices, on a 0 to 100 scale
- ISM, ISPS, MLC, SOLAS and MARPOL visibility across the fleet, based on the records you upload
- Review of every document and image you upload
- Risk scoring and reporting, with corrective action tracked to closure
- Secure client portal
CCI
Core Compliance Index
85
Weight 40%
ARPI
Advanced Risk Prevention Index
72
Weight 35%
SESI
Sustainable Excellence & Safety Index
90
Weight 25%
24
Vessels
3
At risk
21
Compliant
Illustrative interface
WHY SOLARISTECH
Senior Judgment, on the Record.
Engagements are led by our founder and President & CEO Thomas Blenk, a marine engineer whose career runs from new construction survey through senior classification society leadership to former Deputy Commissioner of Maritime Affairs at a flag administration.
ISO 9001:2015
Certified quality management system covering our inspection, audit and advisory work. Certified by Royal Assessments Pvt. Ltd., certificate number EO20260243919.
INDUSTRIES WE SERVE
Across the Maritime Value Chain
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