Vibrant, wild red-meat tuna

SANKORYUKYUNATURALTUNA

DEFINITION

What is "Sanko Ryukyu Natural Tuna®"?

Covering wild tuna from Okinawa Prefecture, we inspect freshness, color, flesh quality, moisture content, and drip loss. We establish standards tailored to the characteristics of each fish species as well as ingredients, blends, and additives for processed goods. Only products carefully selected by Sanko earn our brand name and logo.

  1. 01

    From Okinawa Prefecture

  2. 02

    Wild-caught

  3. 03

    Sanko's Quality Standards

BRAND LOGO

This logo marks products that meet Sanko's certified standards.

Without overcomplicating its design narrative, we straightforwardly explain its role as a mark of certification.

Displayed on products, packaging, storefronts, menus, websites, promotional materials, and more

FRESH TUNA

Fresh Fish Certification Standards

Bigeye Tuna

Bigeye Tuna

  1. From Okinawa Prefecture
  2. Wild-caught
  3. Tuna with exceptional freshness
  4. Vibrant, vivid red color
  5. Low moisture content and firm, supple flesh texture
  6. Minimal drip loss
Yellowfin Tuna

Yellowfin Tuna

  1. From Okinawa Prefecture
  2. Wild-caught
  3. Tuna with exceptional freshness
  4. Vibrant, vivid red color
  5. Low moisture content and firm, supple flesh texture
  6. Minimal drip loss
Albacore Tuna

Albacore Tuna

  1. From Okinawa Prefecture
  2. Wild-caught
  3. Tuna with exceptional freshness
  4. Vibrant, vivid red color
  5. Low moisture content and firm, supple flesh texture
  6. Minimal drip loss
Pacific Bluefin Tuna

Pacific Bluefin Tuna

  1. From Okinawa Prefecture
  2. Wild-caught
  3. Tuna with exceptional freshness
  4. Vibrant, vivid red color
  5. Low moisture content and firm, supple flesh texture
  6. Minimal drip loss
  7. Plump, well-rounded body
  8. Quality, flavorful fat content

PROCESSEDPRODUCTS

Processed Products Certification Standards

Tuna cut-offs / trimmings

Tuna cut-offs / trimmings

  1. Only carefully selected, highly fresh red-meat tuna is used.
  2. Minimal additives
  3. No sinewy parts of the tuna used
Minced tuna / Negitoro

Minced tuna / Negitoro

  1. Only carefully selected, highly fresh red-meat tuna is used.
  2. Minimal additives
  3. No sinewy parts of the tuna used
  4. Contains 75% or more tuna

CERTIFICATION FLOW

Certification Process

  1. Origin & Wild Verification

    Verify wild-caught from Okinawa Prefecture

  2. Freshness & Color Check

    Inspect freshness and color specific to each fish species

  3. Texture & Drip Check

    Verify moisture content and texture

  4. Individual Criteria Check

    Inspect body shape, fat content, ingredients, blending ratios, etc.

  5. Certification & Logo Application

    Displayed on products that meet all standards

Integrated System Supporting Quality

  1. Fishing

    The frontline of quality where we engage directly with wild tuna

  2. Purchasing & Expert Selection

    Identifying fish species and individual differences to select tuna that meets our standards

  3. Processing & Quality Control

    Processing tailored to intended use, preserving freshness and meat quality

  4. Sales & Service

    Delivering not just the product, but the reasons behind its quality.