Founder · Bangladesh ↔ Korea ↔ World

Building trade between Bangladesh, Korea, and the world.

Abidur Rahman — founder of Costareen: 3D-printing supply, import & trading, and garment sourcing. Born in Bangladesh, based in South Korea, operating across both.

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Portrait — real, well-lit photo goes here
(abidur-rahman.jpg)
3
Active ventures
2
Countries of operation
190+
Products supplied
B2B + B2C
Trade channels
Ventures

Three businesses, one bridge.

Each venture runs on the same idea: connect what Bangladesh makes and needs with what Korea and the world can supply and buy.

3D-Printing Supply

Costareen

Bangladesh's dedicated 3D-printing supply company — filaments, printers, and parts from the world's leading brands, stocked and delivered nationwide.

Official Polymaker supplier · SUNLU & Bambu Lab range
costareen.com →
Import & Trading

Cross-Border Trade

Sourcing and importing industrial and consumer goods between Korea and Bangladesh — leveraging on-the-ground presence in both markets to move products reliably.

Korea residency · BD operations
Trade inquiry →
Garment Sourcing

Apparel & Sourcing

Connecting international buyers with vetted Bangladeshi garment factories — quality control, communication, and logistics handled by someone on both sides of the deal.

Factory network in Bangladesh
Buyer inquiry →
Proof

Real operations, not promises.

Costareen stocks and ships daily from its own inventory in Bangladesh. Brands we supply and work with:

Polymaker Official supplier
SUNLU Full range stocked
Bambu Lab Printers & filament
eSUN Filament line

Live catalog with 190+ products at costareen.com — official product imagery, nationwide delivery, and a growing B2B supply desk.

The Story

From Bangladesh, through Korea, into business.

Context makes the ventures make sense.

Roots — Bangladesh

Born and raised in Bangladesh. Grew up close to the country's manufacturing story — the factories, the trade, and what its makers are capable of.

Base — South Korea

Moved to Korea to study, and stayed to build. Korea became the vantage point: access to advanced supply chains, technology, and international buyers.

Now — Building the bridge

Founded Costareen and expanded into import and garment sourcing — turning presence in both countries into a working trade bridge.

“I operate in the space between two economies — where knowing both sides, in both languages, is the whole advantage.” — Abidur Rahman
Contact

Start a conversation.

Distributorship, supply partnerships, garment buying, or trade between Korea and Bangladesh — one message starts it.

B2B inquiry

Goes straight to the founder. Replies within one business day.