Add spaces: PanamasignsmultilateralconventionsofataxtreatyimplementrelatedmeasurestopreventBeps.

Answer: Panama signs multilateral conventions of a tax treaty implement related measures to prevent Beps.

Add spaces: Therearemanyagreementsthattogetherwillformthebasisforasolid,future-safeandmutuallysatisfactoryappointmentofanewemployee.

Answer: There are many agreements that together will form the basis for a solid, future-safe and mutually satisfactory appointment of a new employee.

Add spaces: Theharnesshasthesamebasisdesignas1122,butequippedwithavest.

Answer:
The harness has the same basis design as 1122, but equipped with a vest.