You are looking at a schedule called Thresholds for Tier 1 and Tier 2 activities. This is part of the Crown Minerals Act 1991, which is a law in New Zealand. The schedule has a table that shows different types of minerals, like gold and coal, and some numbers that are important for exploration and mining permits. You can see that the table has columns for exploration permits and mining permits. The exploration permit column shows an estimated total work programme expenditure threshold amount of $1,250,000 for all the minerals listed. The mining permit columns show estimated annual royalty threshold amounts and estimated annual production threshold amounts, which are different for each type of mineral. Some words in the schedule have special meanings, like "metallic mineral" and "platinum group metals". A metallic mineral does not include gold, silver, ironsand, or platinum group metals. Platinum group metals are a group of specific metals, including iridium, osmium, palladium, platinum, rhodium, and ruthenium, as defined in the schedule, which is empowered by s 2B of the Crown Minerals Act 1991.