"Or what is stopping Teck (and associate)from keeping the price down by no NR's (sound familiar) or just mediocre results and slowly accumulating a lot of stock. Easy to save millions"

That would be insider trading, an illegal practice; highly likely for Teck. When they are dealing with a $3 - 4 billion investment, and an investment that would generate profits for the next 50 plus years, they are not going to try to save pennes. (the millions saved are pennies in relative terms.) JMO