South32 currently listed LON:S31, ASX:S32 and JSE:S32

Hearing South32 soon (early 2016) dissolve their secondary London listing, apparently due lack of liquidity not worth the listing there.

Is JSE:S32 maintaining enough liquidity, or is JSE:S32 in for a cut as well ?

Might government see the benefits and be capable of enticing more dual listings, with world-wide shareholders trading on the JSE ?