Dear :

Our firm has been insuring [number] shipments of [goods] with you during the past [number] months. As you have probably noticed we have established stable business relations with a number of customers in [country/area] and started making regular shipments.

We would like to know if you could now arrange open cover for $ against all risks to insure our consignments to , , and [ports].

Please let us know your decision as soon as possible.

Yours sincerely,

[name]

[title]