8-K - NL Industries Inc

8-KMaterial Contracts, Completing Asset Acquisition or Sale, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Material Modifications to Rights of Security Holders, Changes in Board, Management or Compensation, Amendments to Articles of Incorporation or Bylaws

EX-2.1EX-2.1

EX-3.1EX-3.1