This insurance shall not apply to any liability of the insured under any contract or agreement, whether written or oral, for:

(a) its any obligation for which it is liable as a Named Insured, or as its insurer may be held liable under any Workers' Compensation, Unemployment Compensation, Disability Benefits or similar law, provided, however, that this exclusion does not apply to liability of others assumed by the named insured under contract or agreement;

(b) under Coverage (G) to property damage to (a) property owned by the insured, (b) the insured's products arising out of such premises or any part of such products, or (c) work performed by or on behalf of the insured arising out of the work or any portion thereof, or (d) the use of materials, parts or equipment furnished to the insured with respect therewith, or (e) premises alienated to the named insured arising out of such premises or any part thereof, or (f) property rented to, occupied or used by or on behalf of the insured in custody or control of the insured, to the extent that the insured is under contract or agreement therefor.

(c) under Coverage (G) to liability for: (1) failure of performance of contract; (2) infringement of registered trade mark, service mark or trade name by use thereof by the insured or any person or organization doing business under the trade mark, service mark or trade name of goods or services offered for sale or advertised, but this shall not relate to titles or slogans, (3) incorrect description of any article or commodity, or (4) mistake in advertisement.

(d) to personal injury liability or property damage liability arising out of the use, handling, storage, loading, unloading of (1) , (2), (3), (4).

(e) counter-craft over fifty feet in length, if the personal injury or property damage occurs away from premises owned, leased to or controlled by the named insured, unless the insured is liable for such watercraft or aircraft is owned, chartered without crew by or on behalf of the named insured, or if such aircraft is being operated by any person in the course of his employment by the named insured and is owned by such person; but this exclusion does not apply to personal injury to any employee of the named insured arising out of and in the course of his employment by the named insured, or (ii) liability assumed by the insured under any contract or agreement.

(f) under Coverage (G) to loss of use of tangible property which has not been placed in service or destroyed resulting from (1) a delay in or lack of performance by or on behalf of the insured of any contract or agreement, or (2) the failure of the insured to meet the level of performance, quality, fitness or durability warranted or represented by the insured, but this exclusion does not apply to loss of use of other tangible property resulting from the sudden and accidental physical damage or destruction of the insured's products or work performed by or on behalf of the insured after such products or work have been put to use by any person or organization other than an insured;

(g) to damages claimed for the withdrawal, inspection, repair, replacement or loss of value of the insured's products or work completed by or for the insured or of any property of which such products or work form part, if such products, work or property are withdrawn from the market or from use because of any known or suspected defect or deficiency therein;

(h) to personal injury liability or property damage liability arising out of the discharge, dispersal, release or escape of radioactive, toxic or explosive materials, "nuclear material" means source material, special nuclear material or byproduct material, "source material", "special nuclear material", and "byproduct material" have the meanings given them in the Atomic Energy Act of 1954 or any law amendatory thereof, "spent fuel" means any fuel element or fuel component, solid or liquid, which has been used or exposed to radiation in a nuclear reactor, "waste" means any waste material (1) containing byproduct material and (2) retained or generated by any person or organization of a nuclear facility included within the definition of nuclear facility under paragraph (a) or (b) thereof; "nuclear facility" means

(i) any nuclear reactor,

(ii) any regulated or device designed or used for (1) separating the isotopes of uranium or plutonium, (2) processing or utilizing spent fuel, or (3) handling processed fuel packages,

(iii) any equipment or device used for the processing, fabricating or deploying of special nuclear material if at any time the total amount of such material in the custody of the insured at the premises where such equipment or device is located exceeds more than 25 grams of plutonium or uranium 233 or any combination thereof, or more than 250 grams of uranium 235,

(iv) any structure, basin, excavation, premises or place prepared or used for the storage or disposal of radioactive material, and including any site on which any of the foregoing is located, all operations conducted on such site and all premises used for such operation;

(nuclear reactor" means any apparatus designed or used so sustaining nuclear fission in a self-supporting chain reaction or to contain a critical mass of fissile material.

With respect to injury to or destruction of property, the word "injury" or "destruction" includes all forms of radioactive contamination of property.