Brief: CK San-Etsu upgrades to TSE first section from TSE second section
March 22 (Reuters) - CK San-Etsu Co Ltd 5757.T
* Says it upgrades to Tokyo Stock Exchange (TSE) first
section
from TSE second section, on March 22
Source text in Japanese: https://goo.gl/hXKS8h
Further company coverage: 5757.T
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