  The Next-to-Minimal Supersymmetric Standard Model NMSSM provides an
attractive extension to the minimal supersymmetric model by including an extra
Higgs singlet superfield. This extension allows one to link the Higgs-higgsino
mass parameter to a vacuum expectation value of the new scalar field, thus
providing a solution to the mu-problem of the MSSM. It this report, presented
within the context of the LHC / LC Study Group, we examine a particularly
interesting NMSSM scenario where the extra Higgs scalar is rather light. We
determine LHC production cross-sections and branching ratios for the lightest
scalar and find that it will be difficult to observe at the LHC. However, we
show that this lightest scalar can instead be observed at an electron-positron
Linear Collider for all but a small window of parameter space.
