It is a Chinese medal.
The inscription reads
chongqing changjiang lunchuan gongsi (e‡åº†e•¿æ±Ÿè½®èˆ¹å.¬å¸) which translates as the Chongqing Yangtze River Shipping Company.
Chongqing is a large city in Sichuan Province.
The company's website (Chinese) relating to cruises is
here.
As best I can tell, the company is now part of Sinotrans Shipping Ltd.
Gary