CT9 Company guides foreign investors through the entire Thailand BOI journey — from eligibility and application to company setup, work permits, and tax incentives. Local expertise, end to end.
Eligibility depends on your business activity. We assess your case at no charge.
From the first eligibility check to ongoing compliance, CT9 manages each step so you can focus on your business.
Preparation and submission of your BOI promotion application, business plan, and supporting documents — managed to approval.
Incorporation of your Thai company, VAT registration, and corporate structuring aligned with your BOI promotion.
Non-B visas, work permits and the BOI's One-Stop Service for your foreign experts and their families.
Maximising your corporate income tax exemptions, import duty waivers and other BOI privileges you qualify for.
Ongoing BOI reporting, annual reviews and condition compliance so your privileges stay protected.
Tell us about your business and we'll assess your BOI eligibility — free of charge.
Get your free assessment →We evaluate your activity against the BOI's promoted categories — at no cost.
We prepare your business plan and file the BOI application, then attend the interview with you.
On approval, we register your company and secure visas, work permits and privileges.
We handle reporting and condition compliance so your benefits stay intact year after year.
CT9 Company is a Thailand-based advisory firm dedicated to helping foreign investors and companies establish and grow their presence under Board of Investment (BOI) promotion. We combine deep regulatory knowledge with a hands-on, single-point-of-contact approach.
Whether you're a manufacturer, technology company, or setting up a regional headquarters, we translate the complexity of Thai law and BOI procedure into a clear, managed process — in your language.
Talk to our teamNo bouncing between agencies. One dedicated advisor manages your entire BOI journey.
Clear, fixed-scope fees agreed upfront. You always know what you're paying for.
Up-to-date knowledge of BOI categories, conditions and incentives across industries.
Applications prepared right the first time to avoid delays and rejections.
We stay on for visas, permits, accounting referrals and ongoing compliance.
We work for you, not the bureaucracy — translating every step into plain language.
Tell us about your business and goals in Thailand. We'll respond with a clear view of your BOI options — no obligation.