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This department is doing various tasks in the efficient manner to help to execute the project and maintenance work scheduled time since the company is established.

We will arrange for the delivery of items to the site only on written instruction. The corresponding delivery not is to be signed by the concern party especially, the items which need to be delivered to the subcontractor should be signed by the subcontracts’ authorized person.

In case any staff are request us to modify / order additional furniture for their office, we will not carry out any work without MD’s written approval unless otherwise instructed by GM, so the concern person should obtain the written approval from GM prior to proceed the request to our department.
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Hi,

I'll highlight some parts that you need to consider again and improve.

This department is doing various tasks in the efficient manner to help to execute the project and maintenance work scheduled time since the company is established.

We will arrange for the delivery of items to the site only on written instruction. The corresponding delivery not is to be signed by the concern party especially, the items which need to be delivered to the subcontractor should be signed by the subcontracts’ authorized person.

In case any staff are request us to modify / order additional furniture for their office, we will not carry out any work without MD’s written approval unless otherwise instructed by GM, so the concern person should obtain the written approval from GM prior to proceed the request to our department.

Best wishes, Clive
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This department is doing various tasks in a professional and efficient manner to help to execute the Project and Maintenance work within the scheduled time since the company is established.

We will arrange for the delivery of items to the site only on written instruction. But the corresponding delivery not is to be signed by the concerned party . Especially, the items which need to be delivered to the subcontractor who has to sign the delivery note.

In case any staff is request us to modify / order additional furniture for their office, we will not carry out any work without MD’s written approval unless otherwise instructed by GM, so the concerned person should obtain awritten approval from GM prior to forward the request to our department.
Hi again,

This is much better. Do want to try again?

Clive

This department is doing various tasks in a professional and efficient manner to help to execute the Project and Maintenance work within the scheduled time since the company is established.

We will arrange for the delivery of items to the site only on written instruction. But the corresponding delivery note is to be signed by the concerned party . Especially, the items which need to be delivered to the subcontractor who has to sign the delivery note at once. <<< You have no main verb in this sentence. What verb is 'items' the subject of?

In case any staff is request us to modify / order additional furniture for their office, we will not carry out any work without MD’s written approval unless otherwise instructed by GM, so the concerned person should obtain a written approval from GM prior to forward the request to our department.

Are GM and MD the initials of a person's name? If they are titles, use 'the'.
Yes, I want to try again. Followings are my corrected version of the above

This department is doing various tasks in a professional and efficient manner to help to execute the Project and Maintenance work within the scheduled time since the company established.

We will arrange for the delivery of items to the site only on written instruction. But the corresponding delivery note is to be signed by the concerned party . Especially, the delivery of the items to the subcontractor, they have to check the items aginst our delivery note and sign the delivery note accordingly. After the date of delivery, we will not take any responsibility for the items delivered. If any member of staff requests us to modify / order additional furniture for their office, we will not carry out any work without the GM’s written approval unless otherwise instructed by the GM, so the concerned person should obtain a written approval from the GM prior to request our department.
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Hi,

This department is doing various tasks in a professional and efficient manner to help to execute the Project and Maintenance work within the scheduled time since the company established.

We will arrange for the delivery of items to the site only on written instruction. But the corresponding delivery note is to be signed by the concerned party . Especially, the delivery of the items to the subcontractor, they have to check the items aginst our delivery note and sign the delivery note accordingly. After the date of delivery, we will not take any responsibility for the items delivered. If any member of staff requests us to modify / order additional furniture for their office, we will not carry out any work without the GM’s written approval unless otherwise instructed by the GM, so the concerned person should obtain a written approval from the GM prior to request our department.

Here are some more edits.

Are you trying to speak about the past, like this? >>> Since the company was established, this department ihas been performing various tasks in a professional and efficient manner to help to execute the Project and Maintenance work on schedule.

But now you are speaking of the future?

We will arrange for the delivery of items to the site only on written instruction. The corresponding delivery note is to be signed by the concerned party . Especially in the case of delivery of items to the subcontractor, they have to check them against our delivery note and sign it accordingly. After the date of delivery, we will not take any responsibility for the items delivered. If any member of staff requests us to modify / order additional furniture for their office, we will not carry out any work without the GM’s written approval or unless otherwise instructed by the GM, so the concerned person should obtain a written approval from the GM prior to making a request to our department.



Best wishes again, Clive

Any of those book will do.