Mate probably best read the commentary of what you attached...

Mate probably best read the commentary of what you attached before posting - point 20 from your attachment:

20. In 2020, output is anticipated to be higher in India, Kazakhstan, Mexico and Portugal, benefiting from a number of new projects and expansions in existing capacity. Production is also forecast to increase in China, Ireland, Iran and Namibia but to decline in Finland, Peru and the United States.

The ILZSG forecast a decline in mine production in Peru. So unless Antamina has moved countries Peru’s zinc exports won’t be declining in 2020. The market may have heard rumors of an increase in Antamina production but figures were only in the public domain now and wouldn’t have been included in any forecasts. 50+% increase is a massive increase in one of the worlds largest zinc mines.

Plenty of zinc con coming into the market in 2020.