2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/65813Extending our earlier results, we prove that certain tight contact structures on circle bundles over surfaces are not symplectically semi--fillable, thus confirming a conjecture of Ko Honda.12 pages, 4 figures; typos corrected; some details addedSymplectic GeometryGeometric Topology57R57; 57R17text