Combating Customer Erosion By Targeting ?New Movers? - Tire Review Magazine
commerce-department-declares-anti-dumping-duties/
Preliminary anti-dumping duties for certain passenger and light truck tires imported from China were set Jan. 21, 2015, by the Commerce Department’s International Trade Administration. The duty rates vary between 19.17% and 87.99% before adjustments.
Think that has more influence on China's rubber buying then supply's available,
Where the US goes on tariffs the EU will probably follow, you don't buy rubber to make tires if you can't sell them.
China will not be able to sell cheap tires with the added tariffs, their market share will shrink and be replaced by other makers over time, or they will stop subsidizing the industry.
IMF world rubber predictions 2015, tire grade rubber will settle mid year to around $2,500 US a M/T or about 80 Baht a kilo wholesale.
OR, doubt you have ever even seen a rubber tree as what you have written makes no sense at all.