Four short years later, it appears that all fences have been mended. China's steel manufacturers and Aussie miners are currently enjoying a mutually rewarding relationship, and investors stand to benefit. Iron ore commodity prices are in the $150 per tonne range, and Rio Tinto Group, BHP Billiton Limited ( BHP ) and Fortescue Metals Group Ltd ( OTCQX:FSUGY ) are trading higher. This pricing reflects increased exports as China builds inventory ahead of the March construction season. The rally was also fueled by weather-related disruptions as the cyclone season closed key ports in Western Australia. On the steel side, rebar for delivery in October, the most-active steel contract by volume, rose as much as 0.9 percent at 4,293 yuan ($689) a metric ton on the Shanghai Futures Exchange in the week before China's New Year holiday. Reports from Hebei, one of China's leading steel production provinces are also positive.