In Osaka, Japan, OSE's newly active December contract rubber futures (RSS3) closed slightly lower in subdued trading. Trading volume dropped by 4,780 contracts, while the open interest fell by 1,222 contracts from its recent peak, "indicating some liquidation transactions," according to JPX.
In China, the SHFE most active contract for September delivery posted a marginal decline week-on-week, while INE reported a 1.5-percent decrease.
Weekly rubber stocks on SHFE and INE recorded increases of 4,008 metric and 1,815 metric tons, respectively.
In Singapore, SICOM rubber futures for October delivery slightly increased amid active trading.
The trading volume, said JPX, surged by 10,418 contracts compared to the previous week, indicating "the initiation of new trading positions."
The JPX report linked the prevailing "bearish" market sentiment to growing concerns about China's economy following the release of weaker CPI and PPI figures in June.
Additionally, China's trade balance for June fell below market expectations, indicating potential impacts on rubber demand.
On a positive note, JPX said, China's total vehicle sales in June rose by 240,778 units.