According to this site, goldenberries contain some B12:
The fruit is rich in vitamin A (3000 I.U. of carotene per 100g), vitamin C and some of the B complex (thiamine, niacin and B12). The protein and phosphorus levels are exceptionally high for a fruit. The fruit is a berry about 2cm in diameter. The dried fruit is said to be a substitute for yeast. If picked carefully with the calyx intact, the fruit can be stored for 3 months or more. The fruit is about 2cm in diameter.