  Matrix factorisations describe B-type boundary conditions in N=2
supersymmetric Landau-Ginzburg models. At the infrared fixed point, they
correspond to superconformal boundary states. We investigate the relation
between boundary states and matrix factorisations in the Grassmannian
Kazama-Suzuki coset models. For the first non-minimal series, i.e. for the
models of type SU(3)_k/U(2), we identify matrix factorisations for a subset of
the maximally symmetric boundary states. This set provides a basis for the RR
charge lattice, and can be used to generate (presumably all) other boundary
states by tachyon condensation.
