Skip to content
Inventory Ready
Editorial status
Listed · source-checked
Last reviewed
Apr 2, 2026
Next review due
Apr 2, 2027
Commercial relationship
Listed editorially
Challenge window
International cert verification pending

INGREDIENT SUPPLIERS

Taiyo International (Taiyo Kagaku)

Taiyo International Inc. is the US subsidiary of Taiyo Kagaku Co., Ltd., headquartered in Yokkaichi, Mie Prefecture, Japan. Established in the US in 1994 and based in Minneapolis, Minnesota, Taiyo is the producer of Suntheanine, a patented 100% pure L-theanine dietary supplement produced via a proprietary enzymatic process that mimics natural L-theanine production in green tea leaves. Suntheanine was granted FDA GRAS status in 2007. Taiyo also supplies SunFiber (partially hydrolyzed guar gum fiber) and matcha/green tea ingredients. The company operates additional subsidiaries in Germany (Taiyo GmbH, Stuttgart, est. 2012) and China (Taiyo Kagaku China, Shanghai, est. 2006).

Minneapolis, Minnesota

Directory Listing · Records Reviewed

Public records and independent sources have been reviewed.

What this means →
MOQ
Not publicly disclosed
LEAD TIME
Not publicly disclosed
Request a free introWhy this vendor was included · read the editor's call

§1Editorial assessment

Taiyo International Inc. is the US subsidiary of Taiyo Kagaku Co., Ltd., headquartered in Yokkaichi, Mie Prefecture, Japan. Established in the US in 1994 and based in Minneapolis, Minnesota, Taiyo is the producer of Suntheanine, a patented 100% pure L-theanine dietary supplement produced via a proprietary enzymatic process that mimics natural L-theanine production in green tea leaves. Suntheanine was granted FDA GRAS status in 2007. Taiyo also supplies SunFiber (partially hydrolyzed guar gum fiber) and matcha/green tea ingredients. The company operates additional subsidiaries in Germany (Taiyo GmbH, Stuttgart, est. 2012) and China (Taiyo Kagaku China, Shanghai, est. 2006).

Ingredient SourcingCOA (Certificate of Analysis)cGMP (Current Good Manufacturing Practice)GRAS (Generally Recognized as Safe)

§2Our review

The six checks in our review, applied before any name appears in the directory. Each check is auto-derived from public evidence on this profile.

Independent confirmation: warn.
Sources we traced: miss.
How recent: pass.
Right to respond: warn (intl pending).
What they told us: pass.
What we don’t know: miss.

§3Inspection history

§4Certifications

Certification verification in progress. International supplier records require regional database lookups (EudraGMDP, Health Canada NHP, FSSC public register, JHFA directory). See our methodology.

§5Capability matrix

PRODUCT TYPES
Suntheanine (L-Theanine) · SunFiber (Partially Hydrolyzed Guar Gum) · Matcha Ingredients · Green Tea Extracts
CAPABILITIES
Patented Enzymatic L-Theanine Production · Branded Ingredient Supply (Suntheanine, SunFiber) · FDA GRAS Status (Suntheanine, 2007) · US Sales & Distribution (Minneapolis, MN) · Clinical Research Support · Green Tea & Matcha Sourcing

§6Sources

Dietary supplement manufacturers must comply with 21 CFR Part 111 (Current Good Manufacturing Practice for dietary supplements). This includes requirements for personnel, facilities, equipment, production, laboratory operations, and record-keeping.

Disclosures

  • No material connection exists between Inventory Ready and this company

For the check-by-check breakdown that produces this vendor's score, see our scoring framework. The connection map between Taiyo International (Taiyo Kagaku) and other vendors, capabilities, and certifications is in the manufacturer atlas.

Interested in Taiyo International (Taiyo Kagaku)?

Tell us about your project and we'll help you determine if this ingredient supplier is a good fit.

Tell Us About Your Project

Manufacturer Profile. Is this your company? Help us keep this profile accurate →

Educational information only. Not legal, regulatory, or professional advice. Inventory Ready provides independent assessments based on publicly available information. See Terms for details.