No, there are other ways.
What you need to do is find some Bauxite - it lies under pretty much any forest-like biome in ExtraBiomesXL, for instance - and then put it through an industrial electrolyzer. If I recall correctly, this will give you a few tiny piles of titanium dust, which you then combine into piles and feed into an industrial blast furnace. You'll have to use some reinforced casings to get the temperature high enough, I think.
You'll also end up with a bit of aluminium if you do this, of course.