Given the question: What key details about dave king -lrb- businessman -rrb- can be extracted from the following bio? Bio: david cunningham '' dave '' king -lrb- born 1955 in castlemilk -rrb- is a south african based businessman and is the chairman of rangers international football club plc , the holding company that owns rangers football club ltd , the company that owns and operates rangers football club .
The answer is:
- residence is johannesburg , south africa- net worth is # 600 million- birth date is 1955 -lrb- age 60 -rrb-- name is dave king- nationality is scottish- birth place is castlemilk , scotland- occupation is outsourcing