Only 95 years of Iron ore left?

In 2008 Lester Brown wrote in his book, Plan B 2.0, that the earth has 54 years of iron ore left to extract, putting us out at 2068. This was a shocking claim so I decided to look into it. According to my bored-at-work math, we have 95 years left, putting us at 2120. This is still a terrifying prospect, where is my math wrong?

According to Madhumitha Jaganmohan, the earth had an estimated 190 billion tonnes of iron ore in reserves in 2023. And according to the World Economic Forum, we extracted 3 billion tonnes of ore in 2019. Since about 50% of iron is recycled let's increase the reserves by 50% to 285 billion tonnes. Being optimistic and assuming a constant rate of 3 billion tonnes extracted per year, 285/3 is 95 years; 2120.

Can someone smarter than me point out what I did wrong? Otherwise it looks like we have the set end-date for civilization.