THE friends and relatives of Lei Ding (35) and his wife Chi Lifen (30) have offered the $1 million reward for anyone with information that might assist in the search.
Advertisements with pictures of the couple have since been published in all local media announcing the reward.
The Zimbabwe Republic Police is now working with the International Police Organisation (Interpol) and their Chinese counterparts in searching for the couple.
Criminal Investigations Department (CID) Homicide is handling the case.
Sources close to the investigations said Ding, a director of a local company, Yafei Building Material and Mining, and his wife were staying in Borrowdale Brooke.
Information obtained from the CCTV at their house in Borrowdale Brooke showed the couple leaving at around 11:48am in a white Mercedes Benz ML registration number AFA 3322.
They were visiting a friend in Highlands.
They met their friend, a Chinese, outside his house at around 12:38pm before they left for an unknown destination.
The following day, their vehicle was discovered by officers from Mabvuku Police Station while parked along Arcturus Road, with keys in the ignition.