They only said positive. How much? they didn't disclose.
Ribena claimed that it has vitamin C and not how much. No law then
compelled it to disclose the exact content, ie how much. Under
Singapore law, a company only commit a crime if it misleads the
public. How can it mislead if the law does not require it to
disclose the exact content? (in mg or mol)
So, lets say if Ribena has 0.00000001 mg per mil of vitamin C,
technically it breaks no law.
To me, if Ribena has 0.00000001 mg per mil of vitamin C, its
vitamin befitting bacteria and not human.