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How to Contact Sumitomo Mitsui Trust Bank Limited Customer Service

September 2, 2025Lillian Kim3 min read

How to Contact Sumitomo Mitsui Trust Bank Limited Customer Service

Sumitomo Mitsui Trust Bank Limited offers various banking and financial services. If you are a customer or potential customer and need assistance, there are several ways to contact their customer service team.

Contacting Sumitomo Mitsui Trust Bank Limited Customer Service

1. Phone Support

You can contact Sumitomo Mitsui Trust Bank Limited customer service by phone at 03-3286-1111 for general inquiries and assistance. If you are calling from overseas, use +81-46-401-2106, but charges may apply.

2. Website

Sumitomo Mitsui Trust Bank Limited has a detailed website where you can find information about their services and products. Visit Sumitomo Mitsui Trust Bank's official website for news releases, investor relations, and corporate initiatives. You can also find employment information and updates on management strategies.

3. Email Support

If you prefer written communication, you can reach out via email at info@sumitomomitsuitrustbk.jp. Providing a clear description of your issue will help expedite the resolution process.

4. Branch Visits

For face-to-face assistance, visit one of Sumitomo Mitsui Trust Bank Limited's branches. They have multiple branches throughout Japan, including one at 1-4-1 Marunouchi Chiyoda-ku Tokyo. The contact details for the main branch can be found on their official contact page.

5. Online Access

Sumitomo Mitsui Trust Bank Limited provides online access for managing accounts and performing transactions. The online portal can be accessed through the bank's website at smtbusa.com.

Different customer service channels may have varied response times and availability. For urgent matters, it is best to contact customer service by phone or visit a branch.