SIAM Seed

Great SIAM Seed to the world.

We breed vegetable seeds and seedlings that suit the climate and soil in each region — from Southeast Asia across our trading network.

Explore products Contact us

SIAM Seed

Great SIAM Seed to the world.

F1 vegetable seed bred for humid tropics, highland cool crops, and export packing.

Seed quality Browse catalogue

SIAM Seed

Partners across 45+ countries.

Distributors, co-ops, and commercial farms — one breeding house, many soils.

Regions Service
Discover

About us

Seeds bred for your soil, your climate, your market.

SIAM Seed ambitiously breeds varieties suited to climate and soil across the region. Our main lines include cabbage, broccoli, cauliflower, Chinese cabbage, onion, melon, watermelon, pumpkin, and eggplant.

We specialise in F1 hybrids demanded by commercial growers across ASEAN and beyond.

View more

Service

Quality seed, and the support behind it.

SIAM Seed serves growers and partners with reliable genetics and field expertise.

01

Wide variety range

We handle more than 850 varieties including our own F1 lines, plus specialty seed from our ASEAN trial network. Ask us anything about seed.

Browse catalogue
02

Technical support

From distributors to commercial farms — welcome. Our agronomists advise on sowing, crop protection, and trouble-shooting, and host open days at our Chiang Mai station.

Research station
03

Close partner exchange

Our regional team visits growers and dealers across ASEAN, sharing market trends and co-selecting lines for local soils. Member of the Thai Seed Association network.

Get in touch

Facts & figures

Decades of breeding, a growing network.

0+Trading countries
0+Seed items
0+Developments per year
0Years since founding

Sustainability

Our contribution to the UN SDGs

As a seed company, we support a fairer food system — poverty, hunger, climate action, and partnerships.

View more

Our story

From a Bangkok trading desk to ASEAN fields.

Founded in Bangkok in 1962 — now breeding for growers across ASEAN and beyond.

View more

Research station

Thai seed for the region. New life from every field.

Our Chiang Mai farm develops resistant varieties for soils worldwide.

View more

We'd love to hear from you.

Feel free to contact us. Our team is ready to answer your enquiry.

Contact us