In 1919, a conflict between a BTLP subsidiary, Riegos y fuerzas del Ebro, and eight office workers escalated into a 44-days general strike called by the Anarcho-Syndicalist National Confederation of Labour halting Barcelona and 70% of the Catalan industry.
March was widely known for involvement in lucrative illegal activities, for bribery and political influence, and for bending the law whenever he saw a benefit.
This was exemplified in his 1948 takeover of the Barcelona Traction, Light, and Power Company (BTLP) for a small fraction of its real worth.
BTLP was a utility company which provided power and streetcar services in Barcelona; originally incorporated in Canada, it was mostly owned by Belgian investors.
This was not viewed with any great alarm by the bond-holders; BTLP had plenty of pesetas and would pay the interest arrears whenever the currency restrictions were relaxed.
The Belgian government appealed to the International Court of Justice but to no avail: the final resolution coming in 1970, eight years after March's death.