GIC will have a minority stake in Biomat USA, which has a network of 296 plasma collection centres in the United States through the acquisition of newly issued non-voting shares.
The company didn’t disclose the stake GIC will taking in Biomat.
Barcelona-based Grifols will use proceedings to reduce debt, which at the end of March stood at 6.2 billion euros ($7.38 billion).
Grifols shares were up 1.5% in early trading, while benchmark Ibex-35 was down 0.7. The company is valued by the market at 13.5 billion euros.