Momentum in the hydrogen economy is continuing to build, Implats group executive refining and marketing Sifiso Sibiya reported when he presented an Implats slide outlining global market trends for the platinum group metals (PGM) of the Johannesburg Stock Exchange-listed company, which this week announced half-year free cash flow generation of R11-billion generated after funding capital expenditure of R4.9-billion. The slide, which highlighted the technological advances that will diversify and support future PGM demand, singled out hydrogen as a PGM demand sector which is continuing to gain traction, with demand projections being de-risked and showing improvement.