Not in the MUIS register Japanese restaurant chain

Is Ichiban Boshi Halal in Singapore?

No premises under the name Ichiban Boshi appear in the MUIS halal establishments register as of 5 July 2026. Certification is voluntary, so this is not a ruling on the food itself - it means there is no MUIS certificate to verify. You can re-check any time on the official MUIS e-Service or our register search.

Ichiban Boshi, the Japanese restaurant chain run by the RE&S group and known for its sushi, sashimi and set meals, is a regular halal question among fans of Japanese food in Singapore. The register answer is at the top of this page; here is the context around it.

What Ichiban Boshi says

Ichiban Boshi has not published a halal certification or a halal position for its Singapore restaurants, either on its own website or on the site of its parent group RE&S, and its restaurants do not display MUIS certificates. Japanese menus raise questions that go beyond the obvious, since seasonings such as mirin and other rice-wine based ingredients are common across sushi rice, sauces and glazes. Questions about specific dishes are best directed to the chain itself, as recipes and suppliers can change without notice.

What this means for you

Without a certificate there is nothing to verify against the register, so eating at Ichiban Boshi becomes a personal judgement about ingredients rather than a verifiable certification status. Japanese cuisine is also a category where visual checks fail. You cannot see what went into the sushi rice or the glaze on a grilled dish. If certification is your standard, treat Ichiban Boshi as unverified rather than as either halal or non-halal, and re-check the register from time to time - chains do enter the register when they certify premises.

Certified alternatives

The good news is that Japanese cravings are one of the better-served corners of the register:

To check any specific outlet, use the register search with the outlet name or the mall’s postal code.

Sources: [1][2] · Register check: 5 July 2026, HalalFreak.

Frequently asked questions

Is Ichiban Boshi MUIS halal-certified?

No premises under the name Ichiban Boshi appear in the MUIS halal establishments register as of 5 July 2026. Not being listed is not a ruling that the food is not halal - certification is voluntary - but it means there is no MUIS certificate to verify.

Why does mirin matter at Japanese restaurants?

Mirin is a rice wine used widely in Japanese sauces, glazes and seasonings, so diners who avoid alcohol-derived ingredients tend to look for certification or a clear ingredient statement before eating at a Japanese chain.

Is there a halal-certified sushi chain in Singapore?

Yes, certified sushi and Japanese-style chains do appear in the register. Certification is issued per premises rather than per brand, so check the register search for the exact outlet you plan to visit.