Contact Us | Products, Orders, and OEM

Premium OEM Solutions


Kiyomasa Seika is an OEM manufacturing partner that provides comprehensive support from planning to production.

We help you create confectionery that embodies your brand's vision, by combining the expertise of artisans with state-of-the-art equipment.

We deliver high-quality, high-value-added products quickly and carefully.

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Frequently Asked Questions (FAQ) about OEM Manufacturing


  • OEM is a service that allows you to plan, develop, and manufacture original confectionery products using Seisho Seika's technology and facilities. Based on our many years of accumulated confectionery expertise, we support product development with a focus on quality and deliciousness.

  • Yes, we can handle small-lot manufacturing. The minimum lot size varies depending on the unit price of the product and the manufacturing method, but we can offer the best proposal once you consult with us.

  • Yes, we can. Kiyomasa Seika provides comprehensive support from product planning to recipe development. We can help you launch new projects and accelerate your brand expansion.

  • We handle a wide range of Japanese and Western confectionery, including cheesecakes, gateau chocolat, cookies, manju, daifuku, and more. We can also develop gluten-free and vegan products.

  • Yes, it is possible. Kiyomasa Seika has a track record of character collaborations with anime and other brands. We can support smooth product development by leveraging our expertise and necessary procedures from the planning stage.

  • The basic flow is as follows:

    1. Inquiry
    2. Interview/Meeting
    3. Proposal & Quotation
    4. Prototype Production
    5. Specification & Design Confirmation
    6. Contract
    7. Production & Delivery

    As you can see, we handle everything from planning to delivery.

  • We can accommodate short deadlines, but this depends on the product content and quantity. We will propose a schedule during the planning phase, so please contact us first if you are in a hurry.

  • The strengths of Kiyomasa Seika's OEM are as follows:

    • Years of confectionery manufacturing expertise
    • Support for small-lot orders
    • Support for short lead times
    • High-quality and safe manufacturing environment

    We will support you as a partner in "creating marketable products" together with our customers.


  • Our manufacturing plants are committed to thorough hygiene management and inspection systems to provide safe and high-quality products. We maintain consistent quality through initiatives such as food safety management methods (JFS-B) and hygiene education.

  • Recommended for the following types of companies/brands:

    • Those looking to launch a new sweets brand
    • Those wanting to sell original products under their own brand
    • Those wishing to develop local souvenirs or limited-edition products
    • Those wanting to create products for e-commerce sales