Trader abducted 7 billion ransom demand in China A group of Chinese martial agribusiness invited to sign a contract to do business and kidnapping . Criminal Police Department ( C45 , Ministry of Public Security ) has worked with Chinese police rescued a kidnapped trader when to Nanning ( China ) business transactions . According to the survey , dated 17/2 , hero ( in Hoang Mai District, Hanoi ) and a staff to meet Nanning city counterparts . More than a day later , they were a group of Chinese control . 21h day 18/2 , the kidnappers called the Hung family requests 200 thousand yuan ( about 7 billion ) to redeem people . On 27/2 , Hung merchant family had moved 60 thousand yuan ( nearly 2 billion ) into the bank account according to our requirements and then lost contact with the kidnappers . Ministry of Public Security in the , Interpol and police suggested China had coordinated the search and rescue of the two hostages . 15 suspects arrested . On 17/3 , an investigator said , the kidnappers proactively contact business owners agribusiness invitation to do business . Partners to China when they shall be controlled , pressure the family hostage for ransom .