Do you agree that Price Negotiations with bidders after tender opening should not be allowed?

It would not be considered normal practice and may even fall under the guise of 'collusion ', it doesnt mean that it doesn't happen. As long as the discussions are on equal footing with all tender submissions and there is no bias toward any one supplier, then it could be done.

Keep in mind though, it is not considered the right process and may negatively impact on the business. 

The way around this is to ensure your tender specifications are detailed and precise. Then if you have structured your assessment ratings correctly, price is simply another consideration. Sometimes there are more important criteria.

Thanks for invitation.

In strict sense, Price negotiation after bid opening is not acceptable.

Rationale: 

Normally, it is stated in all bid document that the quoted price by the bidders shall be firm and final. Now, If you want to negotiate with the lowest bidder, it will go against the stated bid terms and conditions. Moreover negotiation will raise the question of integrity of procurement professional and transparency and fairness of the bidding process will be lost. 

Depends upon Company Policy & Procedure. In certain cases 1st approved bidder is unable to honor Contractual requirements, in this case second bidder with valuable proposition becomes eligible, its about transparency, so basically yes. 

I belive that it depends on the company policy ... price negotiations can be aginast the international practice for open tenders... how ever its allowed in case the winner of the bid refuse to continue with the awarding for any circumstances ... in such a case a price negotiates can be open with the second winner..... to reduce his price to the lowest in case of the lowest price criteria..

Not at all, then whatbis thebpurpose of competitive bidding.

Yes 

after bidding it should not be allowed

I do not see why not. It all depends on how you structured the process. In principle, if all qualified vendors who submitted their bids are invited to negotiation table and asked to submit their revised proposals after negotiations, and if all vendors were treated equally, it is perfectly legitimate.

I agree with Mr. MD Fazlur Rahman .... when a bit has been entered, the vendor should not rebit to gain an advantage ... it is most the time not the lowest bit which will get the contract, but the one which makes most sence ... delivering the best quality in a timely manner.... also the reputation of the vendor has to be a consideration ....

i'm disagree, it is not acceptable in the procurement. We need to follow what was the EPC/ABC recommended.

Yes, Price negotiations with bidders should not be allowed after tender opening. The price should be firm as negotiated before the tender opening and should be valid during the currency of the project, if awarded to the bidder.

I believed that price negotiation should be considered after bid opening on the selected vendor, both parties could have meeting before finalizing the contract to the vendor, in terms of price, specifications, delivery, payment & other terms and conditions.