Once your trademark has been accepted for registration, the Registrar will enter the details of your trademark into the register and you will be issued with a certificate of registration (some countries only issue e-certificate of registration). You may put ® on your mark in the country(ies) that you get registration to show others that the mark is a registered trademark. 

The trademark rights period varies by country. For some countries, e.g., Hong Kong, Singapore, EU, etc. the rights will be protected for 10 years from the date of application; For some countries, e.g., China, Taiwan, etc. the rights will be protected for 10 years from the date of registration; For Macao, the rights will be protected for 7 years from date of registration.

As intellectual property protection is generally territorial in nature, applying for registration of a trademark in home country does not automatically give registered trademark protection in other countries.

Generally, you only need to submit a renewal for your registered trademark before the expiry date to extend the trademark protection period. However, in some countries, the Trademark Office requests the owner to provide specimens of use of the trademark, e.g., the USA, the Philippines, etc.

Generally, you may submit a renewal half year before the expiry date. But in some countries, you may submit one year before the expiry date, e.g., China, Argentina, etc.

In most countries, there is a 6 months grace period to submit a renewal. However, a penalty will be incurred. For some countries, e.g., Hong Kong, you may request for restoration between 6^th month and 12^th months after the expiry date.

Here is an example for a registration which should be expired on 31^st December 2020:

Type	Submit period	Fees
Normal renewal	1st Jul 2020 ~ 31st Dec 2020	Renewal fee
Renewal within grace period	1st Jan 2021 ~ 30th Jun 2021	Renewal fee + penalty
Restoration	1st Jul 2021 ~ 31st Dec 2021	Restoration fee

Actually, the responsibility of the trademark agent is assisting you to complete a trademark registration (except for being rejected) and the contract is finished once the Certificate of Registration is delivered to you. The trademark agent may kindly remind the owner to renew the mark to gain another cooperation chance. However, the renewal is usually conducted almost 10 years later, the person in charge and the contact person of the owner may be changed. Therefore, the owner should remark the expiry dates of the trademark registration on its own to avoid any late filing.

Most Trademark Office will not issue a renewal reminder to applicants. For some countries, such as Hong Kong, the registrar will issue a renewal reminder within 6 months to 1 month before the expiry date and send to the address for service provided at the time of application (it usually is the agent’s address if the applicant authorizes an agent).

The fees depend on the official fee and the attorney fee (or service fee). Usually, the attorney fee (or service fee) for filing an application or renewal is almost the same. Therefore, the main reason is the trademark office cost renewal higher than application.

It is not advisable to give up the registration. There is several reasons:-

There is no substantive examination for renewal. Once the renewal is submitted, it will only need to have a formality check. There is no big risk to be rejected or to be opposed.

The value of the mark is getting higher than 10 years ago. Since you have invested a lot of precious time and resources onto the mark, the mark becomes more famous and well-known. During the ten years of use, the value of the mark keeps accumulating.

In contrast, you may need to face the risk of rejection and fees for filing response will be incurred.

Therefore, it is advisable to request renewal instead of filing new application.