However, in order to take advantage of the sharp increase in iron ore prices in the past few years, miners decided to move to a quarterly contract system, whereby the contracts would be priced based on the average price in the preceding quarter.

FORBES: Rio Tinto Stock Worth $82 Despite Iron Ore Price Volatility

As he tried to steer round this sharp corner he flew off his bike and landed on the iron railings. 10.37.28 Music 10.37.30 Stewart Clanachan I can remember he was lying on his back.

BBC