China’s foreign exchange reserves dipped below $3tn in January for the first time in five years but the decline was the lowest in seven months as tighter capital controls and a stronger renminbi discouraged outflows.  Official reserves fell by $12.3bn to just under $3tn, well below the average $52bn monthly drop in the third quarter of last year.  China’s reserves peaked at $3.99tn in June 2014 but since then the central bank has sold dollars aggressively to curb renminbi depreciation.