Can you tell what is wrong?

The depicted item seems to be a custom-made lifting apparatus attached beneath the hook.

Who is the manufacturer of this device?

Have any tests been conducted to ensure its safety and reliability for usage?"

To comply with regulations, it is imperative to have correct rated load markings or tagging/identification on this device, failing which it must be taken out of service without delay.

The ASME Volume B30.20 outlines directives that pertain to below-the-hook lifting devices employed to fasten loads to a hoist, including those not covered by other ASME B30 volumes or standards. The requirements of this volume extend to clamps used for positioning and anchoring, encompassing the marking, construction, installation, inspection, testing, maintenance, and operation of the devices.