  We provide the complete decomposition of the local gauge-invariant
energy-momentum tensor for spin-1 hadrons, including non-conserved terms for
the individual parton flavors and antisymmetric contributions originating from
intrinsic spin. We state sum rules for the gravitational form factors appearing
in this decomposition and provide relations for the mass decomposition, work
balance, total and orbital angular momentum, mass radius, and inertia tensor.
Generalizing earlier work, we derive relations between the total and orbital
angular momentum and the Mellin moments of twist-2 and 3 generalized parton
distributions, accessible in hard exclusive processes with spin-1 targets.
Throughout the work, we comment on the unique features in these relations
originating from the spin-1 nature of the hadron, being absent in the lower
spin cases.
