May 23 (Reuters) – Prices of physical rubber compared with May 22:
| Grade | Prices | Change |
| Thai RSS3 (July) | $2.00/kg | unchanged |
| Thai STR20 (July) | $1.85/kg | unchanged |
| Malaysia SMR20 (July) | $1.80/kg | unchanged |
| Indonesia SIR20 (July) | $0.75/lb | unchanged |
| Thai USS3 | 60 baht/kg | unchanged |
| Thai 60-percent latex (drum/July) | $1,500/tonne | unchanged |
| Thai 60-percent latex (bulk/July) | $1,400/tonne | unchanged |
NOTE – The prices quoted above are offer prices collected from traders in Thailand, Indonesia and Malaysia. They are not official prices quoted by state-run rubber agencies in those countries.
(Reporting by Apornrath Phoonphongphiphat; Editing by Anand Basu)
