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New Year’s Business Days

Please let us inform you about the New Year’s business days.

Business closed at 13:00 on Thursday, December 28, 2023
Starts business from Thursday, January 4, 2024

We apologize for any inconvenience during the holidays and much appreciate your understandings.

Wish you a prosperous new year. Happy Holidays!

  • 2023/12/08

Summer Holidays

Please note that K.Sakai will be closed during 14 and 15 August 2023, and resume the business on 16 August 2023.

  • 2023/07/25

K.SAKAI was featured in The Worldfolio

An interveiw with Naoki Sakai, President of K.SAKAI, was featured in The Worldfolio on March 30, 2023. Please refer to this link.

  • 2023/04/02

New Year's Business Days

Please let us inform you about the New Year’s business days.

Business closed on Tuesday, December 29, 2022
Starts business from Wednesday, January 4, 2023

We apologize for any inconvenience during the holidays and much appreciate your understandings.

Wish you a prosperous new year. Happy Holidays!

  • 2022/12/26

Announcement: General Terms and Conditions We will start to apply the General Terms and Conditions for our sales and purchasing from November 1st 2022.

Announcement: General Terms and Conditions
We will start to apply the General Terms and Conditions for our sales and purchasing from November 1st 2022.

  • 2022/10/05

New Year's Business Days

Please let us inform you about the New Year’s business days.

Business closed at 13:30 on Tuesday, December 28, 2021
Starts business from 9:00 on Tuesday, January 4, 2022

We apologize for any inconvenience during the holidays and much appreciate your understandings.

Wish you a prosperous new year. Happy Holidays!

  • 2021/12/28

New Year's Business Days

Please let us inform you about the New Year’s business days.

Business closed at 13:30 on Monday, December 28, 2020
Starts business from 9:00 on Monday, January 4, 2021

We apologize for any inconvenience during the holidays and much appreciate your understandings.

Happy Holidays!

  • 2020/12/24

Summer Holidays

Please note that K.Sakai will be closed during 13 and 14 August 2020, and resume the business on 17 August 2020.

  • 2020/08/12

Sales Agent Agreement with Advanced Graphene Products

K.Sakai has signed on Sales Agent Agreement with Advanced Graphene Products (“AGP”) in Poland which is the first ever in Japan. AGP and K.Sakai will co-develop applications for graphene, the world’s thinnest nanomaterial with high strength and conductivity.

About Advanced Graphene Products Sp. z o.o
Founded in 2012 in a laboratory of Lodz University of Technology, Poland. APG is a company specializing in R&D and manufacturing of graphene materials. They secure competitive product lineup and technical support capability.

See AGP's Homepage

  • 2019/12/24

HQ Relocation Notice

K.Sakai is opening the new headquarter office on March 25, 2019. For more details, please click here.

  • 2019/03/12
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Company Profile

【Osaka Head Office】

9F Midosuji Honmachi Building,
3-5-7 Honmachi,
Chuo-Ku, Osaka, 541-0053 Japan
(Administration)
TEL:+81-50-5434-2440
(Chemical Department)
TEL:+81-50-5434-2441
(Industrial Material Department)
TEL:+81-50-5434-2442
(Operation Group)
TEL:+81-50-5434-2443

【Tokyo Branch】

7F JRHatchobori Building,
3-25-10 Hatchobori,
Chuo-Ku, Tokyo, 104-0032 Japan
TEL:+81-50-5434-2444